def create_facet_grid(df,
x=None,
y=None,
facet_row=None,
facet_col=None,
color_name=None,
colormap=None,
color_is_cat=False,
facet_row_labels=None,
facet_col_labels=None,
height=None,
width=None,
trace_type='scatter',
scales='fixed',
dtick_x=None,
dtick_y=None,
show_boxes=True,
ggplot2=False,
binsize=1,
**kwargs):
"""
Returns figure for facet grid.
:param (pd.DataFrame) df: the dataframe of columns for the facet grid.
:param (str) x: the name of the dataframe column for the x axis data.
:param (str) y: the name of the dataframe column for the y axis data.
:param (str) facet_row: the name of the dataframe column that is used to
facet the grid into row panels.
:param (str) facet_col: the name of the dataframe column that is used to
facet the grid into column panels.
:param (str) color_name: the name of your dataframe column that will
function as the colormap variable.
:param (str|list|dict) colormap: the param that determines how the
color_name column colors the data. If the dataframe contains numeric
data, then a dictionary of colors will group the data categorically
while a Plotly Colorscale name or a custom colorscale will treat it
numerically. To learn more about colors and types of colormap, run
`help(plotly.colors)`.
:param (bool) color_is_cat: determines whether a numerical column for the
colormap will be treated as categorical (True) or sequential (False).
Default = False.
:param (str|dict) facet_row_labels: set to either 'name' or a dictionary
of all the unique values in the faceting row mapped to some text to
show up in the label annotations. If None, labeling works like usual.
:param (str|dict) facet_col_labels: set to either 'name' or a dictionary
of all the values in the faceting row mapped to some text to show up
in the label annotations. If None, labeling works like usual.
:param (int) height: the height of the facet grid figure.
:param (int) width: the width of the facet grid figure.
:param (str) trace_type: decides the type of plot to appear in the
facet grid. The options are 'scatter', 'scattergl', 'histogram',
'bar', and 'box'.
Default = 'scatter'.
:param (str) scales: determines if axes have fixed ranges or not. Valid
settings are 'fixed' (all axes fixed), 'free_x' (x axis free only),
'free_y' (y axis free only) or 'free' (both axes free).
:param (float) dtick_x: determines the distance between each tick on the
x-axis. Default is None which means dtick_x is set automatically.
:param (float) dtick_y: determines the distance between each tick on the
y-axis. Default is None which means dtick_y is set automatically.
:param (bool) show_boxes: draws grey boxes behind the facet titles.
:param (bool) ggplot2: draws the facet grid in the style of `ggplot2`. See
http://ggplot2.tidyverse.org/reference/facet_grid.html for reference.
Default = False
:param (int) binsize: groups all data into bins of a given length.
:param (dict) kwargs: a dictionary of scatterplot arguments.
Examples 1: One Way Faceting
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mpg,
x='displ',
y='cty',
facet_col='cyl',
)
py.iplot(fig, filename='facet_grid_mpg_one_way_facet')
```
Example 2: Two Way Faceting
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mpg,
x='displ',
y='cty',
facet_row='drv',
facet_col='cyl',
)
py.iplot(fig, filename='facet_grid_mpg_two_way_facet')
```
Example 3: Categorical Coloring
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mtcars,
x='mpg',
y='wt',
facet_col='cyl',
color_name='cyl',
color_is_cat=True,
)
py.iplot(fig, filename='facet_grid_mpg_default_colors')
```
Example 4: Sequential Coloring
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
tips = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/tips.csv')
fig = ff.create_facet_grid(
tips,
x='total_bill',
y='tip',
facet_row='sex',
facet_col='smoker',
color_name='size',
colormap='Viridis',
)
py.iplot(fig, filename='facet_grid_tips_sequential_colors')
```
Example 5: Custom labels
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mtcars = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/mtcars.csv')
fig = ff.create_facet_grid(
mtcars,
x='wt',
y='mpg',
facet_col='cyl',
facet_col_labels={4: "$\\alpha$", 6: '$\\beta$', 8: '$\sqrt[y]{x}$'},
)
py.iplot(fig, filename='facet_grid_mtcars_custom_labels')
```
Example 6: Other Trace Type
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mtcars = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/mtcars.csv')
fig = ff.create_facet_grid(
mtcars,
x='wt',
facet_col='cyl',
trace_type='histogram',
)
py.iplot(fig, filename='facet_grid_mtcars_other_trace_type')
```
"""
if not pd:
raise exceptions.ImportError(
"'pandas' must be installed for this figure_factory.")
if not isinstance(df, pd.DataFrame):
raise exceptions.PlotlyError("You must input a pandas DataFrame.")
# make sure all columns are of homogenous datatype
utils.validate_dataframe(df)
if trace_type in ['scatter', 'scattergl']:
if not x or not y:
raise exceptions.PlotlyError(
"You need to input 'x' and 'y' if you are you are using a "
"trace_type of 'scatter' or 'scattergl'.")
for key in [x, y, facet_row, facet_col, color_name]:
if key is not None:
try:
df[key]
except KeyError:
raise exceptions.PlotlyError(
"x, y, facet_row, facet_col and color_name must be keys "
"in your dataframe.")
# autoscale histogram bars
if trace_type not in ['scatter', 'scattergl']:
scales = 'free'
# validate scales
if scales not in ['fixed', 'free_x', 'free_y', 'free']:
raise exceptions.PlotlyError(
"'scales' must be set to 'fixed', 'free_x', 'free_y' and 'free'.")
if trace_type not in VALID_TRACE_TYPES:
raise exceptions.PlotlyError(
"'trace_type' must be in {}".format(VALID_TRACE_TYPES))
if trace_type == 'histogram':
SUBPLOT_SPACING = 0.06
else:
SUBPLOT_SPACING = 0.015
# seperate kwargs for marker and else
if 'marker' in kwargs:
kwargs_marker = kwargs['marker']
else:
kwargs_marker = {}
marker_color = kwargs_marker.pop('color', None)
kwargs.pop('marker', None)
kwargs_trace = kwargs
if 'size' not in kwargs_marker:
if ggplot2:
kwargs_marker['size'] = 5
else:
kwargs_marker['size'] = 8
if 'opacity' not in kwargs_marker:
if not ggplot2:
kwargs_trace['opacity'] = 0.6
if 'line' not in kwargs_marker:
if not ggplot2:
kwargs_marker['line'] = {'color': 'darkgrey', 'width': 1}
else:
kwargs_marker['line'] = {}
# default marker size
if not ggplot2:
if not marker_color:
marker_color = 'rgb(31, 119, 180)'
else:
marker_color = 'rgb(0, 0, 0)'
num_of_rows = 1
num_of_cols = 1
flipped_rows = False
flipped_cols = False
if facet_row:
num_of_rows = len(df[facet_row].unique())
flipped_rows = _is_flipped(num_of_rows)
if isinstance(facet_row_labels, dict):
for key in df[facet_row].unique():
if key not in facet_row_labels.keys():
unique_keys = df[facet_row].unique().tolist()
raise exceptions.PlotlyError(
CUSTOM_LABEL_ERROR.format(unique_keys))
if facet_col:
num_of_cols = len(df[facet_col].unique())
flipped_cols = _is_flipped(num_of_cols)
if isinstance(facet_col_labels, dict):
for key in df[facet_col].unique():
if key not in facet_col_labels.keys():
unique_keys = df[facet_col].unique().tolist()
raise exceptions.PlotlyError(
CUSTOM_LABEL_ERROR.format(unique_keys))
show_legend = False
if color_name:
if isinstance(df[color_name].iloc[0], str) or color_is_cat:
show_legend = True
if isinstance(colormap, dict):
utils.validate_colors_dict(colormap, 'rgb')
for val in df[color_name].unique():
if val not in colormap.keys():
raise exceptions.PlotlyError(
"If using 'colormap' as a dictionary, make sure "
"all the values of the colormap column are in "
"the keys of your dictionary.")
else:
# use default plotly colors for dictionary
default_colors = utils.DEFAULT_PLOTLY_COLORS
colormap = {}
j = 0
for val in df[color_name].unique():
if j >= len(default_colors):
j = 0
colormap[val] = default_colors[j]
j += 1
fig, annotations = _facet_grid_color_categorical(
df, x, y, facet_row, facet_col, color_name, colormap,
num_of_rows, num_of_cols, facet_row_labels, facet_col_labels,
trace_type, flipped_rows, flipped_cols, show_boxes,
SUBPLOT_SPACING, marker_color, kwargs_trace, kwargs_marker)
elif isinstance(df[color_name].iloc[0], Number):
if isinstance(colormap, dict):
show_legend = True
utils.validate_colors_dict(colormap, 'rgb')
for val in df[color_name].unique():
if val not in colormap.keys():
raise exceptions.PlotlyError(
"If using 'colormap' as a dictionary, make sure "
"all the values of the colormap column are in "
"the keys of your dictionary.")
fig, annotations = _facet_grid_color_categorical(
df, x, y, facet_row, facet_col, color_name, colormap,
num_of_rows, num_of_cols, facet_row_labels,
facet_col_labels, trace_type, flipped_rows, flipped_cols,
show_boxes, SUBPLOT_SPACING, marker_color, kwargs_trace,
kwargs_marker)
elif isinstance(colormap, list):
colorscale_list = colormap
utils.validate_colorscale(colorscale_list)
fig, annotations = _facet_grid_color_numerical(
df, x, y, facet_row, facet_col, color_name,
colorscale_list, num_of_rows, num_of_cols,
facet_row_labels, facet_col_labels, trace_type,
flipped_rows, flipped_cols, show_boxes, SUBPLOT_SPACING,
marker_color, kwargs_trace, kwargs_marker)
elif isinstance(colormap, str):
if colormap in colors.PLOTLY_SCALES.keys():
colorscale_list = colors.PLOTLY_SCALES[colormap]
else:
raise exceptions.PlotlyError(
"If 'colormap' is a string, it must be the name "
"of a Plotly Colorscale. The available colorscale "
"names are {}".format(colors.PLOTLY_SCALES.keys()))
fig, annotations = _facet_grid_color_numerical(
df, x, y, facet_row, facet_col, color_name,
colorscale_list, num_of_rows, num_of_cols,
facet_row_labels, facet_col_labels, trace_type,
flipped_rows, flipped_cols, show_boxes, SUBPLOT_SPACING,
marker_color, kwargs_trace, kwargs_marker)
else:
colorscale_list = colors.PLOTLY_SCALES['Reds']
fig, annotations = _facet_grid_color_numerical(
df, x, y, facet_row, facet_col, color_name,
colorscale_list, num_of_rows, num_of_cols,
facet_row_labels, facet_col_labels, trace_type,
flipped_rows, flipped_cols, show_boxes, SUBPLOT_SPACING,
marker_color, kwargs_trace, kwargs_marker)
else:
fig, annotations = _facet_grid(
df, x, y, facet_row, facet_col, num_of_rows, num_of_cols,
facet_row_labels, facet_col_labels, trace_type, flipped_rows,
flipped_cols, show_boxes, SUBPLOT_SPACING, marker_color,
kwargs_trace, kwargs_marker)
if not height:
height = max(600, 100 * num_of_rows)
if not width:
width = max(600, 100 * num_of_cols)
fig['layout'].update(height=height,
width=width,
title='',
paper_bgcolor='rgb(251, 251, 251)')
if ggplot2:
fig['layout'].update(plot_bgcolor=PLOT_BGCOLOR,
paper_bgcolor='rgb(255, 255, 255)',
hovermode='closest')
# axis titles
x_title_annot = _axis_title_annotation(x, 'x')
y_title_annot = _axis_title_annotation(y, 'y')
# annotations
annotations.append(x_title_annot)
annotations.append(y_title_annot)
# legend
fig['layout']['showlegend'] = show_legend
fig['layout']['legend']['bgcolor'] = LEGEND_COLOR
fig['layout']['legend']['borderwidth'] = LEGEND_BORDER_WIDTH
fig['layout']['legend']['x'] = 1.05
fig['layout']['legend']['y'] = 1
fig['layout']['legend']['yanchor'] = 'top'
if show_legend:
fig['layout']['showlegend'] = show_legend
if ggplot2:
if color_name:
legend_annot = _legend_annotation(color_name)
annotations.append(legend_annot)
fig['layout']['margin']['r'] = 150
# assign annotations to figure
fig['layout']['annotations'] = annotations
# add shaded boxes behind axis titles
if show_boxes and ggplot2:
_add_shapes_to_fig(fig, ANNOT_RECT_COLOR, flipped_rows, flipped_cols)
# all xaxis and yaxis labels
axis_labels = {'x': [], 'y': []}
for key in fig['layout']:
if 'xaxis' in key:
axis_labels['x'].append(key)
elif 'yaxis' in key:
axis_labels['y'].append(key)
string_number_in_data = False
for var in [v for v in [x, y] if v]:
if isinstance(df[var].tolist()[0], str):
for item in df[var]:
try:
int(item)
string_number_in_data = True
except ValueError:
pass
if string_number_in_data:
for x_y in axis_labels.keys():
for axis_name in axis_labels[x_y]:
fig['layout'][axis_name]['type'] = 'category'
if scales == 'fixed':
fixed_axes = ['x', 'y']
elif scales == 'free_x':
fixed_axes = ['y']
elif scales == 'free_y':
fixed_axes = ['x']
elif scales == 'free':
fixed_axes = []
# fixed ranges
for x_y in fixed_axes:
min_ranges = []
max_ranges = []
for trace in fig['data']:
if trace[x_y] is not None and len(trace[x_y]) > 0:
min_ranges.append(min(trace[x_y]))
max_ranges.append(max(trace[x_y]))
while None in min_ranges:
min_ranges.remove(None)
while None in max_ranges:
max_ranges.remove(None)
min_range = min(min_ranges)
max_range = max(max_ranges)
range_are_numbers = (isinstance(min_range, Number)
and isinstance(max_range, Number))
if range_are_numbers:
min_range = math.floor(min_range)
max_range = math.ceil(max_range)
# extend widen frame by 5% on each side
min_range -= 0.05 * (max_range - min_range)
max_range += 0.05 * (max_range - min_range)
if x_y == 'x':
if dtick_x:
dtick = dtick_x
else:
dtick = math.floor(
(max_range - min_range) / MAX_TICKS_PER_AXIS)
elif x_y == 'y':
if dtick_y:
dtick = dtick_y
else:
dtick = math.floor(
(max_range - min_range) / MAX_TICKS_PER_AXIS)
else:
dtick = 1
for axis_title in axis_labels[x_y]:
fig['layout'][axis_title]['dtick'] = dtick
fig['layout'][axis_title]['ticklen'] = 0
fig['layout'][axis_title]['zeroline'] = False
if ggplot2:
fig['layout'][axis_title]['tickwidth'] = 1
fig['layout'][axis_title]['ticklen'] = 4
fig['layout'][axis_title]['gridwidth'] = GRID_WIDTH
fig['layout'][axis_title]['gridcolor'] = GRID_COLOR
fig['layout'][axis_title]['gridwidth'] = 2
fig['layout'][axis_title]['tickfont'] = {
'color': TICK_COLOR,
'size': 10
}
# insert ranges into fig
if x_y in fixed_axes:
for key in fig['layout']:
if '{}axis'.format(x_y) in key and range_are_numbers:
fig['layout'][key]['range'] = [min_range, max_range]
return fig
def create_scatterplotmatrix(df, index=None, endpts=None, diag='scatter',
height=500, width=500, size=6,
title='Scatterplot Matrix', colormap=None,
colormap_type='cat', dataframe=None,
headers=None, index_vals=None, **kwargs):
"""
Returns data for a scatterplot matrix.
:param (array) df: array of the data with column headers
:param (str) index: name of the index column in data array
:param (list|tuple) endpts: takes an increasing sequece of numbers
that defines intervals on the real line. They are used to group
the entries in an index of numbers into their corresponding
interval and therefore can be treated as categorical data
:param (str) diag: sets the chart type for the main diagonal plots.
The options are 'scatter', 'histogram' and 'box'.
:param (int|float) height: sets the height of the chart
:param (int|float) width: sets the width of the chart
:param (float) size: sets the marker size (in px)
:param (str) title: the title label of the scatterplot matrix
:param (str|tuple|list|dict) colormap: either a plotly scale name,
an rgb or hex color, a color tuple, a list of colors or a
dictionary. An rgb color is of the form 'rgb(x, y, z)' where
x, y and z belong to the interval [0, 255] and a color tuple is a
tuple of the form (a, b, c) where a, b and c belong to [0, 1].
If colormap is a list, it must contain valid color types as its
members.
If colormap is a dictionary, all the string entries in
the index column must be a key in colormap. In this case, the
colormap_type is forced to 'cat' or categorical
:param (str) colormap_type: determines how colormap is interpreted.
Valid choices are 'seq' (sequential) and 'cat' (categorical). If
'seq' is selected, only the first two colors in colormap will be
considered (when colormap is a list) and the index values will be
linearly interpolated between those two colors. This option is
forced if all index values are numeric.
If 'cat' is selected, a color from colormap will be assigned to
each category from index, including the intervals if endpts is
being used
:param (dict) **kwargs: a dictionary of scatterplot arguments
The only forbidden parameters are 'size', 'color' and
'colorscale' in 'marker'
Example 1: Vanilla Scatterplot Matrix
```
import plotly.plotly as py
from plotly.graph_objs import graph_objs
from plotly.figure_factory import create_scatterplotmatrix
import numpy as np
import pandas as pd
# Create dataframe
df = pd.DataFrame(np.random.randn(10, 2),
columns=['Column 1', 'Column 2'])
# Create scatterplot matrix
fig = create_scatterplotmatrix(df)
# Plot
py.iplot(fig, filename='Vanilla Scatterplot Matrix')
```
Example 2: Indexing a Column
```
import plotly.plotly as py
from plotly.graph_objs import graph_objs
from plotly.figure_factory import create_scatterplotmatrix
import numpy as np
import pandas as pd
# Create dataframe with index
df = pd.DataFrame(np.random.randn(10, 2),
columns=['A', 'B'])
# Add another column of strings to the dataframe
df['Fruit'] = pd.Series(['apple', 'apple', 'grape', 'apple', 'apple',
'grape', 'pear', 'pear', 'apple', 'pear'])
# Create scatterplot matrix
fig = create_scatterplotmatrix(df, index='Fruit', size=10)
# Plot
py.iplot(fig, filename = 'Scatterplot Matrix with Index')
```
Example 3: Styling the Diagonal Subplots
```
import plotly.plotly as py
from plotly.graph_objs import graph_objs
from plotly.figure_factory import create_scatterplotmatrix
import numpy as np
import pandas as pd
# Create dataframe with index
df = pd.DataFrame(np.random.randn(10, 4),
columns=['A', 'B', 'C', 'D'])
# Add another column of strings to the dataframe
df['Fruit'] = pd.Series(['apple', 'apple', 'grape', 'apple', 'apple',
'grape', 'pear', 'pear', 'apple', 'pear'])
# Create scatterplot matrix
fig = create_scatterplotmatrix(df, diag='box', index='Fruit', height=1000,
width=1000)
# Plot
py.iplot(fig, filename = 'Scatterplot Matrix - Diagonal Styling')
```
Example 4: Use a Theme to Style the Subplots
```
import plotly.plotly as py
from plotly.graph_objs import graph_objs
from plotly.figure_factory import create_scatterplotmatrix
import numpy as np
import pandas as pd
# Create dataframe with random data
df = pd.DataFrame(np.random.randn(100, 3),
columns=['A', 'B', 'C'])
# Create scatterplot matrix using a built-in
# Plotly palette scale and indexing column 'A'
fig = create_scatterplotmatrix(df, diag='histogram', index='A',
colormap='Blues', height=800, width=800)
# Plot
py.iplot(fig, filename = 'Scatterplot Matrix - Colormap Theme')
```
Example 5: Example 4 with Interval Factoring
```
import plotly.plotly as py
from plotly.graph_objs import graph_objs
from plotly.figure_factory import create_scatterplotmatrix
import numpy as np
import pandas as pd
# Create dataframe with random data
df = pd.DataFrame(np.random.randn(100, 3),
columns=['A', 'B', 'C'])
# Create scatterplot matrix using a list of 2 rgb tuples
# and endpoints at -1, 0 and 1
fig = create_scatterplotmatrix(df, diag='histogram', index='A',
colormap=['rgb(140, 255, 50)',
'rgb(170, 60, 115)', '#6c4774',
(0.5, 0.1, 0.8)],
endpts=[-1, 0, 1], height=800, width=800)
# Plot
py.iplot(fig, filename = 'Scatterplot Matrix - Intervals')
```
Example 6: Using the colormap as a Dictionary
```
import plotly.plotly as py
from plotly.graph_objs import graph_objs
from plotly.figure_factory import create_scatterplotmatrix
import numpy as np
import pandas as pd
import random
# Create dataframe with random data
df = pd.DataFrame(np.random.randn(100, 3),
columns=['Column A',
'Column B',
'Column C'])
# Add new color column to dataframe
new_column = []
strange_colors = ['turquoise', 'limegreen', 'goldenrod']
for j in range(100):
new_column.append(random.choice(strange_colors))
df['Colors'] = pd.Series(new_column, index=df.index)
# Create scatterplot matrix using a dictionary of hex color values
# which correspond to actual color names in 'Colors' column
fig = create_scatterplotmatrix(
df, diag='box', index='Colors',
colormap= dict(
turquoise = '#00F5FF',
limegreen = '#32CD32',
goldenrod = '#DAA520'
),
colormap_type='cat',
height=800, width=800
)
# Plot
py.iplot(fig, filename = 'Scatterplot Matrix - colormap dictionary ')
```
"""
# TODO: protected until #282
if dataframe is None:
dataframe = []
if headers is None:
headers = []
if index_vals is None:
index_vals = []
validate_scatterplotmatrix(df, index, diag, colormap_type, **kwargs)
# Validate colormap
if isinstance(colormap, dict):
colormap = clrs.validate_colors_dict(colormap, 'rgb')
elif isinstance(colormap, six.string_types) and 'rgb' not in colormap and '#' not in colormap:
if colormap not in clrs.PLOTLY_SCALES.keys():
raise exceptions.PlotlyError(
"If 'colormap' is a string, it must be the name "
"of a Plotly Colorscale. The available colorscale "
"names are {}".format(clrs.PLOTLY_SCALES.keys())
)
else:
# TODO change below to allow the correct Plotly colorscale
colormap = clrs.colorscale_to_colors(clrs.PLOTLY_SCALES[colormap])
# keep only first and last item - fix later
colormap = [colormap[0]] + [colormap[-1]]
colormap = clrs.validate_colors(colormap, 'rgb')
else:
colormap = clrs.validate_colors(colormap, 'rgb')
if not index:
for name in df:
headers.append(name)
for name in headers:
dataframe.append(df[name].values.tolist())
# Check for same data-type in df columns
utils.validate_dataframe(dataframe)
figure = scatterplot(dataframe, headers, diag, size, height, width,
title, **kwargs)
return figure
else:
# Validate index selection
if index not in df:
raise exceptions.PlotlyError("Make sure you set the index "
"input variable to one of the "
"column names of your "
"dataframe.")
index_vals = df[index].values.tolist()
for name in df:
if name != index:
headers.append(name)
for name in headers:
dataframe.append(df[name].values.tolist())
# check for same data-type in each df column
utils.validate_dataframe(dataframe)
utils.validate_index(index_vals)
# check if all colormap keys are in the index
# if colormap is a dictionary
if isinstance(colormap, dict):
for key in colormap:
if not all(index in colormap for index in index_vals):
raise exceptions.PlotlyError("If colormap is a "
"dictionary, all the "
"names in the index "
"must be keys.")
figure = scatterplot_dict(
dataframe, headers, diag, size, height, width, title,
index, index_vals, endpts, colormap, colormap_type,
**kwargs
)
return figure
else:
figure = scatterplot_theme(
dataframe, headers, diag, size, height, width, title,
index, index_vals, endpts, colormap, colormap_type,
**kwargs
)
return figure
def create_facet_grid(df,
x=None,
y=None,
facet_row=None,
facet_col=None,
color_name=None,
colormap=None,
color_is_cat=False,
facet_row_labels=None,
facet_col_labels=None,
height=None,
width=None,
trace_type="scatter",
scales="fixed",
dtick_x=None,
dtick_y=None,
show_boxes=True,
ggplot2=False,
binsize=1,
**kwargs):
"""
Returns figure for facet grid; **this function is deprecated**, since
plotly.express functions should be used instead, for example
>>> import plotly.express as px
>>> tips = px.data.tips()
>>> fig = px.scatter(tips,
... x='total_bill',
... y='tip',
... facet_row='sex',
... facet_col='smoker',
... color='size')
:param (pd.DataFrame) df: the dataframe of columns for the facet grid.
:param (str) x: the name of the dataframe column for the x axis data.
:param (str) y: the name of the dataframe column for the y axis data.
:param (str) facet_row: the name of the dataframe column that is used to
facet the grid into row panels.
:param (str) facet_col: the name of the dataframe column that is used to
facet the grid into column panels.
:param (str) color_name: the name of your dataframe column that will
function as the colormap variable.
:param (str|list|dict) colormap: the param that determines how the
color_name column colors the data. If the dataframe contains numeric
data, then a dictionary of colors will group the data categorically
while a Plotly Colorscale name or a custom colorscale will treat it
numerically. To learn more about colors and types of colormap, run
`help(plotly.colors)`.
:param (bool) color_is_cat: determines whether a numerical column for the
colormap will be treated as categorical (True) or sequential (False).
Default = False.
:param (str|dict) facet_row_labels: set to either 'name' or a dictionary
of all the unique values in the faceting row mapped to some text to
show up in the label annotations. If None, labeling works like usual.
:param (str|dict) facet_col_labels: set to either 'name' or a dictionary
of all the values in the faceting row mapped to some text to show up
in the label annotations. If None, labeling works like usual.
:param (int) height: the height of the facet grid figure.
:param (int) width: the width of the facet grid figure.
:param (str) trace_type: decides the type of plot to appear in the
facet grid. The options are 'scatter', 'scattergl', 'histogram',
'bar', and 'box'.
Default = 'scatter'.
:param (str) scales: determines if axes have fixed ranges or not. Valid
settings are 'fixed' (all axes fixed), 'free_x' (x axis free only),
'free_y' (y axis free only) or 'free' (both axes free).
:param (float) dtick_x: determines the distance between each tick on the
x-axis. Default is None which means dtick_x is set automatically.
:param (float) dtick_y: determines the distance between each tick on the
y-axis. Default is None which means dtick_y is set automatically.
:param (bool) show_boxes: draws grey boxes behind the facet titles.
:param (bool) ggplot2: draws the facet grid in the style of `ggplot2`. See
http://ggplot2.tidyverse.org/reference/facet_grid.html for reference.
Default = False
:param (int) binsize: groups all data into bins of a given length.
:param (dict) kwargs: a dictionary of scatterplot arguments.
Examples 1: One Way Faceting
>>> import plotly.figure_factory as ff
>>> import pandas as pd
>>> mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
>>> fig = ff.create_facet_grid(
... mpg,
... x='displ',
... y='cty',
... facet_col='cyl',
... )
>>> fig.show()
Example 2: Two Way Faceting
>>> import plotly.figure_factory as ff
>>> import pandas as pd
>>> mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
>>> fig = ff.create_facet_grid(
... mpg,
... x='displ',
... y='cty',
... facet_row='drv',
... facet_col='cyl',
... )
>>> fig.show()
Example 3: Categorical Coloring
>>> import plotly.figure_factory as ff
>>> import pandas as pd
>>> mtcars = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/mtcars.csv')
>>> mtcars.cyl = mtcars.cyl.astype(str)
>>> fig = ff.create_facet_grid(
... mtcars,
... x='mpg',
... y='wt',
... facet_col='cyl',
... color_name='cyl',
... color_is_cat=True,
... )
>>> fig.show()
"""
if not pd:
raise ImportError(
"'pandas' must be installed for this figure_factory.")
if not isinstance(df, pd.DataFrame):
raise exceptions.PlotlyError("You must input a pandas DataFrame.")
# make sure all columns are of homogenous datatype
utils.validate_dataframe(df)
if trace_type in ["scatter", "scattergl"]:
if not x or not y:
raise exceptions.PlotlyError(
"You need to input 'x' and 'y' if you are you are using a "
"trace_type of 'scatter' or 'scattergl'.")
for key in [x, y, facet_row, facet_col, color_name]:
if key is not None:
try:
df[key]
except KeyError:
raise exceptions.PlotlyError(
"x, y, facet_row, facet_col and color_name must be keys "
"in your dataframe.")
# autoscale histogram bars
if trace_type not in ["scatter", "scattergl"]:
scales = "free"
# validate scales
if scales not in ["fixed", "free_x", "free_y", "free"]:
raise exceptions.PlotlyError(
"'scales' must be set to 'fixed', 'free_x', 'free_y' and 'free'.")
if trace_type not in VALID_TRACE_TYPES:
raise exceptions.PlotlyError(
"'trace_type' must be in {}".format(VALID_TRACE_TYPES))
if trace_type == "histogram":
SUBPLOT_SPACING = 0.06
else:
SUBPLOT_SPACING = 0.015
# seperate kwargs for marker and else
if "marker" in kwargs:
kwargs_marker = kwargs["marker"]
else:
kwargs_marker = {}
marker_color = kwargs_marker.pop("color", None)
kwargs.pop("marker", None)
kwargs_trace = kwargs
if "size" not in kwargs_marker:
if ggplot2:
kwargs_marker["size"] = 5
else:
kwargs_marker["size"] = 8
if "opacity" not in kwargs_marker:
if not ggplot2:
kwargs_trace["opacity"] = 0.6
if "line" not in kwargs_marker:
if not ggplot2:
kwargs_marker["line"] = {"color": "darkgrey", "width": 1}
else:
kwargs_marker["line"] = {}
# default marker size
if not ggplot2:
if not marker_color:
marker_color = "rgb(31, 119, 180)"
else:
marker_color = "rgb(0, 0, 0)"
num_of_rows = 1
num_of_cols = 1
flipped_rows = False
flipped_cols = False
if facet_row:
num_of_rows = len(df[facet_row].unique())
flipped_rows = _is_flipped(num_of_rows)
if isinstance(facet_row_labels, dict):
for key in df[facet_row].unique():
if key not in facet_row_labels.keys():
unique_keys = df[facet_row].unique().tolist()
raise exceptions.PlotlyError(
CUSTOM_LABEL_ERROR.format(unique_keys))
if facet_col:
num_of_cols = len(df[facet_col].unique())
flipped_cols = _is_flipped(num_of_cols)
if isinstance(facet_col_labels, dict):
for key in df[facet_col].unique():
if key not in facet_col_labels.keys():
unique_keys = df[facet_col].unique().tolist()
raise exceptions.PlotlyError(
CUSTOM_LABEL_ERROR.format(unique_keys))
show_legend = False
if color_name:
if isinstance(df[color_name].iloc[0], str) or color_is_cat:
show_legend = True
if isinstance(colormap, dict):
clrs.validate_colors_dict(colormap, "rgb")
for val in df[color_name].unique():
if val not in colormap.keys():
raise exceptions.PlotlyError(
"If using 'colormap' as a dictionary, make sure "
"all the values of the colormap column are in "
"the keys of your dictionary.")
else:
# use default plotly colors for dictionary
default_colors = clrs.DEFAULT_PLOTLY_COLORS
colormap = {}
j = 0
for val in df[color_name].unique():
if j >= len(default_colors):
j = 0
colormap[val] = default_colors[j]
j += 1
fig, annotations = _facet_grid_color_categorical(
df,
x,
y,
facet_row,
facet_col,
color_name,
colormap,
num_of_rows,
num_of_cols,
facet_row_labels,
facet_col_labels,
trace_type,
flipped_rows,
flipped_cols,
show_boxes,
SUBPLOT_SPACING,
marker_color,
kwargs_trace,
kwargs_marker,
)
elif isinstance(df[color_name].iloc[0], Number):
if isinstance(colormap, dict):
show_legend = True
clrs.validate_colors_dict(colormap, "rgb")
for val in df[color_name].unique():
if val not in colormap.keys():
raise exceptions.PlotlyError(
"If using 'colormap' as a dictionary, make sure "
"all the values of the colormap column are in "
"the keys of your dictionary.")
fig, annotations = _facet_grid_color_categorical(
df,
x,
y,
facet_row,
facet_col,
color_name,
colormap,
num_of_rows,
num_of_cols,
facet_row_labels,
facet_col_labels,
trace_type,
flipped_rows,
flipped_cols,
show_boxes,
SUBPLOT_SPACING,
marker_color,
kwargs_trace,
kwargs_marker,
)
elif isinstance(colormap, list):
colorscale_list = colormap
clrs.validate_colorscale(colorscale_list)
fig, annotations = _facet_grid_color_numerical(
df,
x,
y,
facet_row,
facet_col,
color_name,
colorscale_list,
num_of_rows,
num_of_cols,
facet_row_labels,
facet_col_labels,
trace_type,
flipped_rows,
flipped_cols,
show_boxes,
SUBPLOT_SPACING,
marker_color,
kwargs_trace,
kwargs_marker,
)
elif isinstance(colormap, str):
if colormap in clrs.PLOTLY_SCALES.keys():
colorscale_list = clrs.PLOTLY_SCALES[colormap]
else:
raise exceptions.PlotlyError(
"If 'colormap' is a string, it must be the name "
"of a Plotly Colorscale. The available colorscale "
"names are {}".format(clrs.PLOTLY_SCALES.keys()))
fig, annotations = _facet_grid_color_numerical(
df,
x,
y,
facet_row,
facet_col,
color_name,
colorscale_list,
num_of_rows,
num_of_cols,
facet_row_labels,
facet_col_labels,
trace_type,
flipped_rows,
flipped_cols,
show_boxes,
SUBPLOT_SPACING,
marker_color,
kwargs_trace,
kwargs_marker,
)
else:
colorscale_list = clrs.PLOTLY_SCALES["Reds"]
fig, annotations = _facet_grid_color_numerical(
df,
x,
y,
facet_row,
facet_col,
color_name,
colorscale_list,
num_of_rows,
num_of_cols,
facet_row_labels,
facet_col_labels,
trace_type,
flipped_rows,
flipped_cols,
show_boxes,
SUBPLOT_SPACING,
marker_color,
kwargs_trace,
kwargs_marker,
)
else:
fig, annotations = _facet_grid(
df,
x,
y,
facet_row,
facet_col,
num_of_rows,
num_of_cols,
facet_row_labels,
facet_col_labels,
trace_type,
flipped_rows,
flipped_cols,
show_boxes,
SUBPLOT_SPACING,
marker_color,
kwargs_trace,
kwargs_marker,
)
if not height:
height = max(600, 100 * num_of_rows)
if not width:
width = max(600, 100 * num_of_cols)
fig["layout"].update(height=height,
width=width,
title="",
paper_bgcolor="rgb(251, 251, 251)")
if ggplot2:
fig["layout"].update(
plot_bgcolor=PLOT_BGCOLOR,
paper_bgcolor="rgb(255, 255, 255)",
hovermode="closest",
)
# axis titles
x_title_annot = _axis_title_annotation(x, "x")
y_title_annot = _axis_title_annotation(y, "y")
# annotations
annotations.append(x_title_annot)
annotations.append(y_title_annot)
# legend
fig["layout"]["showlegend"] = show_legend
fig["layout"]["legend"]["bgcolor"] = LEGEND_COLOR
fig["layout"]["legend"]["borderwidth"] = LEGEND_BORDER_WIDTH
fig["layout"]["legend"]["x"] = 1.05
fig["layout"]["legend"]["y"] = 1
fig["layout"]["legend"]["yanchor"] = "top"
if show_legend:
fig["layout"]["showlegend"] = show_legend
if ggplot2:
if color_name:
legend_annot = _legend_annotation(color_name)
annotations.append(legend_annot)
fig["layout"]["margin"]["r"] = 150
# assign annotations to figure
fig["layout"]["annotations"] = annotations
# add shaded boxes behind axis titles
if show_boxes and ggplot2:
_add_shapes_to_fig(fig, ANNOT_RECT_COLOR, flipped_rows, flipped_cols)
# all xaxis and yaxis labels
axis_labels = {"x": [], "y": []}
for key in fig["layout"]:
if "xaxis" in key:
axis_labels["x"].append(key)
elif "yaxis" in key:
axis_labels["y"].append(key)
string_number_in_data = False
for var in [v for v in [x, y] if v]:
if isinstance(df[var].tolist()[0], str):
for item in df[var]:
try:
int(item)
string_number_in_data = True
except ValueError:
pass
if string_number_in_data:
for x_y in axis_labels.keys():
for axis_name in axis_labels[x_y]:
fig["layout"][axis_name]["type"] = "category"
if scales == "fixed":
fixed_axes = ["x", "y"]
elif scales == "free_x":
fixed_axes = ["y"]
elif scales == "free_y":
fixed_axes = ["x"]
elif scales == "free":
fixed_axes = []
# fixed ranges
for x_y in fixed_axes:
min_ranges = []
max_ranges = []
for trace in fig["data"]:
if trace[x_y] is not None and len(trace[x_y]) > 0:
min_ranges.append(min(trace[x_y]))
max_ranges.append(max(trace[x_y]))
while None in min_ranges:
min_ranges.remove(None)
while None in max_ranges:
max_ranges.remove(None)
min_range = min(min_ranges)
max_range = max(max_ranges)
range_are_numbers = isinstance(min_range, Number) and isinstance(
max_range, Number)
if range_are_numbers:
min_range = math.floor(min_range)
max_range = math.ceil(max_range)
# extend widen frame by 5% on each side
min_range -= 0.05 * (max_range - min_range)
max_range += 0.05 * (max_range - min_range)
if x_y == "x":
if dtick_x:
dtick = dtick_x
else:
dtick = math.floor(
(max_range - min_range) / MAX_TICKS_PER_AXIS)
elif x_y == "y":
if dtick_y:
dtick = dtick_y
else:
dtick = math.floor(
(max_range - min_range) / MAX_TICKS_PER_AXIS)
else:
dtick = 1
for axis_title in axis_labels[x_y]:
fig["layout"][axis_title]["dtick"] = dtick
fig["layout"][axis_title]["ticklen"] = 0
fig["layout"][axis_title]["zeroline"] = False
if ggplot2:
fig["layout"][axis_title]["tickwidth"] = 1
fig["layout"][axis_title]["ticklen"] = 4
fig["layout"][axis_title]["gridwidth"] = GRID_WIDTH
fig["layout"][axis_title]["gridcolor"] = GRID_COLOR
fig["layout"][axis_title]["gridwidth"] = 2
fig["layout"][axis_title]["tickfont"] = {
"color": TICK_COLOR,
"size": 10,
}
# insert ranges into fig
if x_y in fixed_axes:
for key in fig["layout"]:
if "{}axis".format(x_y) in key and range_are_numbers:
fig["layout"][key]["range"] = [min_range, max_range]
return fig
def create_facet_grid(df, x=None, y=None, facet_row=None, facet_col=None,
color_name=None, colormap=None, color_is_cat=False,
facet_row_labels=None, facet_col_labels=None,
height=None, width=None, trace_type='scatter',
scales='fixed', dtick_x=None, dtick_y=None,
show_boxes=True, ggplot2=False, binsize=1, **kwargs):
"""
Returns figure for facet grid.
:param (pd.DataFrame) df: the dataframe of columns for the facet grid.
:param (str) x: the name of the dataframe column for the x axis data.
:param (str) y: the name of the dataframe column for the y axis data.
:param (str) facet_row: the name of the dataframe column that is used to
facet the grid into row panels.
:param (str) facet_col: the name of the dataframe column that is used to
facet the grid into column panels.
:param (str) color_name: the name of your dataframe column that will
function as the colormap variable.
:param (str|list|dict) colormap: the param that determines how the
color_name column colors the data. If the dataframe contains numeric
data, then a dictionary of colors will group the data categorically
while a Plotly Colorscale name or a custom colorscale will treat it
numerically. To learn more about colors and types of colormap, run
`help(plotly.colors)`.
:param (bool) color_is_cat: determines whether a numerical column for the
colormap will be treated as categorical (True) or sequential (False).
Default = False.
:param (str|dict) facet_row_labels: set to either 'name' or a dictionary
of all the unique values in the faceting row mapped to some text to
show up in the label annotations. If None, labeling works like usual.
:param (str|dict) facet_col_labels: set to either 'name' or a dictionary
of all the values in the faceting row mapped to some text to show up
in the label annotations. If None, labeling works like usual.
:param (int) height: the height of the facet grid figure.
:param (int) width: the width of the facet grid figure.
:param (str) trace_type: decides the type of plot to appear in the
facet grid. The options are 'scatter', 'scattergl', 'histogram',
'bar', and 'box'.
Default = 'scatter'.
:param (str) scales: determines if axes have fixed ranges or not. Valid
settings are 'fixed' (all axes fixed), 'free_x' (x axis free only),
'free_y' (y axis free only) or 'free' (both axes free).
:param (float) dtick_x: determines the distance between each tick on the
x-axis. Default is None which means dtick_x is set automatically.
:param (float) dtick_y: determines the distance between each tick on the
y-axis. Default is None which means dtick_y is set automatically.
:param (bool) show_boxes: draws grey boxes behind the facet titles.
:param (bool) ggplot2: draws the facet grid in the style of `ggplot2`. See
http://ggplot2.tidyverse.org/reference/facet_grid.html for reference.
Default = False
:param (int) binsize: groups all data into bins of a given length.
:param (dict) kwargs: a dictionary of scatterplot arguments.
Examples 1: One Way Faceting
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mpg,
x='displ',
y='cty',
facet_col='cyl',
)
py.iplot(fig, filename='facet_grid_mpg_one_way_facet')
```
Example 2: Two Way Faceting
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mpg,
x='displ',
y='cty',
facet_row='drv',
facet_col='cyl',
)
py.iplot(fig, filename='facet_grid_mpg_two_way_facet')
```
Example 3: Categorical Coloring
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mtcars,
x='mpg',
y='wt',
facet_col='cyl',
color_name='cyl',
color_is_cat=True,
)
py.iplot(fig, filename='facet_grid_mpg_default_colors')
```
Example 4: Sequential Coloring
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
tips = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/tips.csv')
fig = ff.create_facet_grid(
tips,
x='total_bill',
y='tip',
facet_row='sex',
facet_col='smoker',
color_name='size',
colormap='Viridis',
)
py.iplot(fig, filename='facet_grid_tips_sequential_colors')
```
Example 5: Custom labels
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mtcars = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/mtcars.csv')
fig = ff.create_facet_grid(
mtcars,
x='wt',
y='mpg',
facet_col='cyl',
facet_col_labels={4: "$\\alpha$", 6: '$\\beta$', 8: '$\sqrt[y]{x}$'},
)
py.iplot(fig, filename='facet_grid_mtcars_custom_labels')
```
Example 6: Other Trace Type
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mtcars = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/mtcars.csv')
fig = ff.create_facet_grid(
mtcars,
x='wt',
facet_col='cyl',
trace_type='histogram',
)
py.iplot(fig, filename='facet_grid_mtcars_other_trace_type')
```
"""
if not pd:
raise exceptions.ImportError(
"'pandas' must be installed for this figure_factory."
)
if not isinstance(df, pd.DataFrame):
raise exceptions.PlotlyError(
"You must input a pandas DataFrame."
)
# make sure all columns are of homogenous datatype
utils.validate_dataframe(df)
if trace_type in ['scatter', 'scattergl']:
if not x or not y:
raise exceptions.PlotlyError(
"You need to input 'x' and 'y' if you are you are using a "
"trace_type of 'scatter' or 'scattergl'."
)
for key in [x, y, facet_row, facet_col, color_name]:
if key is not None:
try:
df[key]
except KeyError:
raise exceptions.PlotlyError(
"x, y, facet_row, facet_col and color_name must be keys "
"in your dataframe."
)
# autoscale histogram bars
if trace_type not in ['scatter', 'scattergl']:
scales = 'free'
# validate scales
if scales not in ['fixed', 'free_x', 'free_y', 'free']:
raise exceptions.PlotlyError(
"'scales' must be set to 'fixed', 'free_x', 'free_y' and 'free'."
)
if trace_type not in VALID_TRACE_TYPES:
raise exceptions.PlotlyError(
"'trace_type' must be in {}".format(VALID_TRACE_TYPES)
)
if trace_type == 'histogram':
SUBPLOT_SPACING = 0.06
else:
SUBPLOT_SPACING = 0.015
# seperate kwargs for marker and else
if 'marker' in kwargs:
kwargs_marker = kwargs['marker']
else:
kwargs_marker = {}
marker_color = kwargs_marker.pop('color', None)
kwargs.pop('marker', None)
kwargs_trace = kwargs
if 'size' not in kwargs_marker:
if ggplot2:
kwargs_marker['size'] = 5
else:
kwargs_marker['size'] = 8
if 'opacity' not in kwargs_marker:
if not ggplot2:
kwargs_trace['opacity'] = 0.6
if 'line' not in kwargs_marker:
if not ggplot2:
kwargs_marker['line'] = {'color': 'darkgrey', 'width': 1}
else:
kwargs_marker['line'] = {}
# default marker size
if not ggplot2:
if not marker_color:
marker_color = 'rgb(31, 119, 180)'
else:
marker_color = 'rgb(0, 0, 0)'
num_of_rows = 1
num_of_cols = 1
flipped_rows = False
flipped_cols = False
if facet_row:
num_of_rows = len(df[facet_row].unique())
flipped_rows = _is_flipped(num_of_rows)
if isinstance(facet_row_labels, dict):
for key in df[facet_row].unique():
if key not in facet_row_labels.keys():
unique_keys = df[facet_row].unique().tolist()
raise exceptions.PlotlyError(
CUSTOM_LABEL_ERROR.format(unique_keys)
)
if facet_col:
num_of_cols = len(df[facet_col].unique())
flipped_cols = _is_flipped(num_of_cols)
if isinstance(facet_col_labels, dict):
for key in df[facet_col].unique():
if key not in facet_col_labels.keys():
unique_keys = df[facet_col].unique().tolist()
raise exceptions.PlotlyError(
CUSTOM_LABEL_ERROR.format(unique_keys)
)
show_legend = False
if color_name:
if isinstance(df[color_name].iloc[0], str) or color_is_cat:
show_legend = True
if isinstance(colormap, dict):
utils.validate_colors_dict(colormap, 'rgb')
for val in df[color_name].unique():
if val not in colormap.keys():
raise exceptions.PlotlyError(
"If using 'colormap' as a dictionary, make sure "
"all the values of the colormap column are in "
"the keys of your dictionary."
)
else:
# use default plotly colors for dictionary
default_colors = utils.DEFAULT_PLOTLY_COLORS
colormap = {}
j = 0
for val in df[color_name].unique():
if j >= len(default_colors):
j = 0
colormap[val] = default_colors[j]
j += 1
fig = _facet_grid_color_categorical(
df, x, y, facet_row, facet_col, color_name, colormap,
num_of_rows, num_of_cols, facet_row_labels, facet_col_labels,
trace_type, flipped_rows, flipped_cols, show_boxes,
SUBPLOT_SPACING, marker_color, kwargs_trace, kwargs_marker
)
elif isinstance(df[color_name].iloc[0], Number):
if isinstance(colormap, dict):
show_legend = True
utils.validate_colors_dict(colormap, 'rgb')
for val in df[color_name].unique():
if val not in colormap.keys():
raise exceptions.PlotlyError(
"If using 'colormap' as a dictionary, make sure "
"all the values of the colormap column are in "
"the keys of your dictionary."
)
fig = _facet_grid_color_categorical(
df, x, y, facet_row, facet_col, color_name, colormap,
num_of_rows, num_of_cols, facet_row_labels,
facet_col_labels, trace_type, flipped_rows,
flipped_cols, show_boxes, SUBPLOT_SPACING, marker_color,
kwargs_trace, kwargs_marker
)
elif isinstance(colormap, list):
colorscale_list = colormap
utils.validate_colorscale(colorscale_list)
fig = _facet_grid_color_numerical(
df, x, y, facet_row, facet_col, color_name,
colorscale_list, num_of_rows, num_of_cols,
facet_row_labels, facet_col_labels, trace_type,
flipped_rows, flipped_cols, show_boxes, SUBPLOT_SPACING,
marker_color, kwargs_trace, kwargs_marker
)
elif isinstance(colormap, str):
if colormap in colors.PLOTLY_SCALES.keys():
colorscale_list = colors.PLOTLY_SCALES[colormap]
else:
raise exceptions.PlotlyError(
"If 'colormap' is a string, it must be the name "
"of a Plotly Colorscale. The available colorscale "
"names are {}".format(colors.PLOTLY_SCALES.keys())
)
fig = _facet_grid_color_numerical(
df, x, y, facet_row, facet_col, color_name,
colorscale_list, num_of_rows, num_of_cols,
facet_row_labels, facet_col_labels, trace_type,
flipped_rows, flipped_cols, show_boxes, SUBPLOT_SPACING,
marker_color, kwargs_trace, kwargs_marker
)
else:
colorscale_list = colors.PLOTLY_SCALES['Reds']
fig = _facet_grid_color_numerical(
df, x, y, facet_row, facet_col, color_name,
colorscale_list, num_of_rows, num_of_cols,
facet_row_labels, facet_col_labels, trace_type,
flipped_rows, flipped_cols, show_boxes, SUBPLOT_SPACING,
marker_color, kwargs_trace, kwargs_marker
)
else:
fig = _facet_grid(
df, x, y, facet_row, facet_col, num_of_rows, num_of_cols,
facet_row_labels, facet_col_labels, trace_type, flipped_rows,
flipped_cols, show_boxes, SUBPLOT_SPACING, marker_color,
kwargs_trace, kwargs_marker
)
if not height:
height = max(600, 100 * num_of_rows)
if not width:
width = max(600, 100 * num_of_cols)
fig['layout'].update(height=height, width=width, title='',
paper_bgcolor='rgb(251, 251, 251)')
if ggplot2:
fig['layout'].update(plot_bgcolor=PLOT_BGCOLOR,
paper_bgcolor='rgb(255, 255, 255)',
hovermode='closest')
# axis titles
x_title_annot = _axis_title_annotation(x, 'x')
y_title_annot = _axis_title_annotation(y, 'y')
fig['layout']['annotations'].append(x_title_annot)
fig['layout']['annotations'].append(y_title_annot)
# legend
fig['layout']['showlegend'] = show_legend
fig['layout']['legend']['bgcolor'] = LEGEND_COLOR
fig['layout']['legend']['borderwidth'] = LEGEND_BORDER_WIDTH
fig['layout']['legend']['x'] = 1.05
fig['layout']['legend']['y'] = 1
fig['layout']['legend']['yanchor'] = 'top'
if show_legend:
fig['layout']['showlegend'] = show_legend
if ggplot2:
if color_name:
legend_annot = _legend_annotation(color_name)
fig['layout']['annotations'].append(legend_annot)
fig['layout']['margin']['r'] = 150
# add shaded boxes behind axis titles
if show_boxes and ggplot2:
_add_shapes_to_fig(fig, ANNOT_RECT_COLOR, flipped_rows, flipped_cols)
# all xaxis and yaxis labels
axis_labels = {'x': [], 'y': []}
for key in fig['layout']:
if 'xaxis' in key:
axis_labels['x'].append(key)
elif 'yaxis' in key:
axis_labels['y'].append(key)
string_number_in_data = False
for var in [v for v in [x, y] if v]:
if isinstance(df[var].tolist()[0], str):
for item in df[var]:
try:
int(item)
string_number_in_data = True
except ValueError:
pass
if string_number_in_data:
for x_y in axis_labels.keys():
for axis_name in axis_labels[x_y]:
fig['layout'][axis_name]['type'] = 'category'
if scales == 'fixed':
fixed_axes = ['x', 'y']
elif scales == 'free_x':
fixed_axes = ['y']
elif scales == 'free_y':
fixed_axes = ['x']
elif scales == 'free':
fixed_axes = []
# fixed ranges
for x_y in fixed_axes:
min_ranges = []
max_ranges = []
for trace in fig['data']:
if trace[x_y] is not None and len(trace[x_y]) > 0:
min_ranges.append(min(trace[x_y]))
max_ranges.append(max(trace[x_y]))
while None in min_ranges:
min_ranges.remove(None)
while None in max_ranges:
max_ranges.remove(None)
min_range = min(min_ranges)
max_range = max(max_ranges)
range_are_numbers = (isinstance(min_range, Number) and
isinstance(max_range, Number))
if range_are_numbers:
min_range = math.floor(min_range)
max_range = math.ceil(max_range)
# extend widen frame by 5% on each side
min_range -= 0.05 * (max_range - min_range)
max_range += 0.05 * (max_range - min_range)
if x_y == 'x':
if dtick_x:
dtick = dtick_x
else:
dtick = math.floor(
(max_range - min_range) / MAX_TICKS_PER_AXIS
)
elif x_y == 'y':
if dtick_y:
dtick = dtick_y
else:
dtick = math.floor(
(max_range - min_range) / MAX_TICKS_PER_AXIS
)
else:
dtick = 1
for axis_title in axis_labels[x_y]:
fig['layout'][axis_title]['dtick'] = dtick
fig['layout'][axis_title]['ticklen'] = 0
fig['layout'][axis_title]['zeroline'] = False
if ggplot2:
fig['layout'][axis_title]['tickwidth'] = 1
fig['layout'][axis_title]['ticklen'] = 4
fig['layout'][axis_title]['gridwidth'] = GRID_WIDTH
fig['layout'][axis_title]['gridcolor'] = GRID_COLOR
fig['layout'][axis_title]['gridwidth'] = 2
fig['layout'][axis_title]['tickfont'] = {
'color': TICK_COLOR, 'size': 10
}
# insert ranges into fig
if x_y in fixed_axes:
for key in fig['layout']:
if '{}axis'.format(x_y) in key and range_are_numbers:
fig['layout'][key]['range'] = [min_range, max_range]
return fig
def create_facet_grid(df,
x=None,
y=None,
facet_row=None,
facet_col=None,
color_name=None,
colormap=None,
color_is_cat=False,
facet_row_labels=None,
facet_col_labels=None,
height=None,
width=None,
trace_type='scatter',
hide_x_labels=False,
hide_y_labels=False,
scales='fixed',
dtick_x=None,
dtick_y=None,
text_name=None,
show_boxes=True,
ggplot2=False,
binsize=1,
jitter=0,
**kwargs):
"""
Returns figure for facet grid.
:param (pd.DataFrame) df: the dataframe of columns for the facet grid.
:param (str) x: the name of the dataframe column for the x axis data.
:param (str) y: the name of the dataframe column for the y axis data.
:param (str) facet_row: the name of the dataframe column that is used to
facet the grid into row panels.
:param (str) facet_col: the name of the dataframe column that is used to
facet the grid into column panels.
:param (str) color_name: the name of your dataframe column that will
function as the colormap variable.
:param (str|list|dict) colormap: the param that determines how the
color_name column colors the data. If the dataframe contains numeric
data, then a dictionary of colors will group the data categorically
while a Plotly Colorscale name or a custom colorscale will treat it
numerically. To learn more about colors and types of colormap, run
`help(plotly.colors)`.
:param (bool) color_is_cat: determines whether a numerical column for the
colormap will be treated as categorical (True) or sequential (False).
Default = False.
:param (str|dict) facet_row_labels: set to either 'name' or a dictionary
of all the unique values in the faceting row mapped to some text to
show up in the label annotations. If None, labeling works like usual.
:param (str|dict) facet_col_labels: set to either 'name' or a dictionary
of all the values in the faceting row mapped to some text to show up
in the label annotations. If None, labeling works like usual.
:param (int) height: the height of the facet grid figure.
:param (int) width: the width of the facet grid figure.
:param (str) trace_type: decides the type of plot to appear in the
facet grid. The options are 'scatter', 'scattergl', 'histogram',
'bar', and 'box'.
Default = 'scatter'.
:param (str) scales: determines if axes have fixed ranges or not. Valid
settings are 'fixed' (all axes fixed), 'free_x' (x axis free only),
'free_y' (y axis free only) or 'free' (both axes free).
:param (float) dtick_x: determines the distance between each tick on the
x-axis. Default is None which means dtick_x is set automatically.
:param (float) dtick_y: determines the distance between each tick on the
y-axis. Default is None which means dtick_y is set automatically.
:param (bool) show_boxes: draws grey boxes behind the facet titles.
:param (bool) ggplot2: draws the facet grid in the style of `ggplot2`. See
http://ggplot2.tidyverse.org/reference/facet_grid.html for reference.
Default = False
:param (int) binsize: groups all data into bins of a given length.
:param (int) jitter: Amount to offset an individual categorical x-axis
datapoint. The higher the number, the more extreme the jitter
Default: 0 (no jitter)
:param (dict) kwargs: a dictionary of scatterplot arguments.
Examples 1: One Way Faceting
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mpg,
x='displ',
y='cty',
facet_col='cyl',
)
py.iplot(fig, filename='facet_grid_mpg_one_way_facet')
```
Example 2: Two Way Faceting
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mpg,
x='displ',
y='cty',
facet_row='drv',
facet_col='cyl',
)
py.iplot(fig, filename='facet_grid_mpg_two_way_facet')
```
Example 3: Categorical Coloring
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mpg = pd.read_table('https://raw.githubusercontent.com/plotly/datasets/master/mpg_2017.txt')
fig = ff.create_facet_grid(
mtcars,
x='mpg',
y='wt',
facet_col='cyl',
color_name='cyl',
color_is_cat=True,
)
py.iplot(fig, filename='facet_grid_mpg_default_colors')
```
Example 4: Sequential Coloring
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
tips = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/tips.csv')
fig = ff.create_facet_grid(
tips,
x='total_bill',
y='tip',
facet_row='sex',
facet_col='smoker',
color_name='size',
colormap='Viridis',
)
py.iplot(fig, filename='facet_grid_tips_sequential_colors')
```
Example 5: Custom labels
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mtcars = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/mtcars.csv')
fig = ff.create_facet_grid(
mtcars,
x='wt',
y='mpg',
facet_col='cyl',
facet_col_labels={4: "$\\alpha$", 6: '$\\beta$', 8: '$\sqrt[y]{x}$'},
)
py.iplot(fig, filename='facet_grid_mtcars_custom_labels')
```
Example 6: Other Trace Type
```
import plotly.plotly as py
import plotly.figure_factory as ff
import pandas as pd
mtcars = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/mtcars.csv')
fig = ff.create_facet_grid(
mtcars,
x='wt',
facet_col='cyl',
trace_type='histogram',
)
py.iplot(fig, filename='facet_grid_mtcars_other_trace_type')
```
"""
if not pd:
raise exceptions.ImportError(
"'pandas' must be installed for this figure_factory.")
if not isinstance(df, pd.DataFrame):
raise exceptions.PlotlyError("You must input a pandas DataFrame.")
# make sure all columns are of homogenous datatype
utils.validate_dataframe(df)
# the tsne_dynamic trace type is an alias for scatter
if trace_type == 'tsne_dynamic':
trace_type = 'scatter'
if PLOT_LOGGING:
print("DEBUG: trace_type is: {0}".format(trace_type), file=sys.stderr)
if trace_type in ['scatter', 'scattergl']:
if not x or not y:
raise exceptions.PlotlyError(
"You need to input 'x' and 'y' if you are you are using a "
"trace_type of 'scatter' or 'scattergl'.")
for key in [x, y, facet_row, facet_col, color_name]:
if key is not None:
try:
df[key]
except KeyError:
raise exceptions.PlotlyError(
"x, y, facet_row, facet_col and color_name must be keys "
"in your dataframe.")
if trace_type not in VALID_TRACE_TYPES:
raise exceptions.PlotlyError(
"'trace_type' must be in {}".format(VALID_TRACE_TYPES))
if trace_type == 'histogram' or trace_type == 'line':
SUBPLOT_SPACING = 0.06
else:
SUBPLOT_SPACING = 0.015
# seperate kwargs for marker and else
if 'marker' in kwargs:
kwargs_marker = kwargs['marker']
else:
kwargs_marker = {}
marker_color = kwargs_marker.pop('color', None)
kwargs.pop('marker', None)
kwargs_trace = kwargs
if 'size' not in kwargs_marker:
kwargs_marker['size'] = 3
# Bar plots do not accept size markers
if trace_type == 'bar':
kwargs_marker.pop('size', None)
if 'opacity' not in kwargs_marker:
kwargs_trace['opacity'] = 0.6
# if 'line' not in kwargs_marker:
# kwargs_marker['line'] = {'color': 'darkgrey', 'width': 1}
# default marker size
if not ggplot2:
if not marker_color:
marker_color = '#401362'
else:
marker_color = 'rgb(0, 0, 0)'
num_of_rows = 1
num_of_cols = 1
flipped_rows = False
flipped_cols = False
if facet_row:
num_of_rows = len(df[facet_row].unique())
flipped_rows = _is_flipped(num_of_rows)
if isinstance(facet_row_labels, dict):
for key in df[facet_row].unique():
if key not in facet_row_labels.keys():
unique_keys = df[facet_row].unique().tolist()
raise exceptions.PlotlyError(
CUSTOM_LABEL_ERROR.format(unique_keys))
if facet_col:
num_of_cols = len(df[facet_col].unique())
flipped_cols = _is_flipped(num_of_cols)
if isinstance(facet_col_labels, dict):
for key in df[facet_col].unique():
if key not in facet_col_labels.keys():
unique_keys = df[facet_col].unique().tolist()
raise exceptions.PlotlyError(
CUSTOM_LABEL_ERROR.format(unique_keys))
# Set up some args to pass to _gear_facet_grid function
show_legend = False
colormapping = None
color_type = None # None, 'categorical', or 'numerical'
# If there is a color label, use either the categorial or numerical facet grid
if color_name:
if isinstance(colormap, dict):
show_legend = True
color_type = "categorical"
clrs.validate_colors_dict(colormap, 'rgb')
for val in df[color_name].unique():
if val not in colormap.keys():
raise exceptions.PlotlyError(
"If using 'colormap' as a dictionary, make sure "
"all the values of the colormap column are in "
"the keys of your dictionary.")
colormapping = colormap
if PLOT_LOGGING:
print("DEBUG: Color type is 'categorical' with colormap dict",
file=sys.stderr)
elif isinstance(colormap, list):
color_type = "numerical"
colormapping = colormap
clrs.validate_colorscale(colormapping)
if PLOT_LOGGING:
print("DEBUG: Color type is 'numerical' from colormap list",
file=sys.stderr)
elif isinstance(colormap, str):
color_type = "numerical"
if colormap in clrs.PLOTLY_SCALES.keys():
colormapping = clrs.PLOTLY_SCALES[colormap]
else:
raise exceptions.PlotlyError(
"If 'colormap' is a string, it must be the name "
"of a Plotly Colorscale. The available colorscale "
"names are {}".format(clrs.PLOTLY_SCALES.keys()))
if PLOT_LOGGING:
print("DEBUG: Color type is 'numerical' from colormap string",
file=sys.stderr)
else:
if isinstance(df[color_name].iloc[0], str) or color_is_cat:
color_type = "categorical"
# use default plotly colors for dictionary
default_colors = clrs.DEFAULT_PLOTLY_COLORS
colormap = {}
j = 0
for val in df[color_name].unique():
if j >= len(default_colors):
j = 0
colormap[val] = default_colors[j]
j += 1
colormapping = colormap
else:
color_type = "numerical"
colormapping = [[0, 'rgb(218, 183, 193)'],
[0.35, 'rgb(194, 137, 166)'],
[0.5, 'rgb(169, 98, 151)'],
[0.6, 'rgb(145, 66, 143)'],
[0.7, 'rgb(105, 39, 122)'],
[1, 'rgb(63, 19, 98)']]
if PLOT_LOGGING:
print("DEBUG: Color type is 'numerical' with no colormap",
file=sys.stderr)
else:
if PLOT_LOGGING:
print("DEBUG: Color type is 'None'", file=sys.stderr)
fig, annotations = _gear_facet_grid(
df, x, y, facet_row, facet_col, color_name, colormapping, color_type,
num_of_rows, num_of_cols, facet_row_labels, facet_col_labels,
trace_type, flipped_rows, flipped_cols, SUBPLOT_SPACING, marker_color,
text_name, jitter, kwargs_trace, kwargs_marker)
### General layout adjustments
fig['layout'].update(title='', paper_bgcolor=PAPER_BGCOLOR)
fig['layout']['hovermode'] = "closest"
# Default "plotly" theme produces gray plot backgrounds
fig['layout']['template'] = "none"
# axis titles
x_title_annot = _axis_title_annotation('', 'x')
y_title_annot = _axis_title_annotation('', 'y')
# annotations
annotations.append(x_title_annot)
annotations.append(y_title_annot)
# all xaxis and yaxis labels
axis_labels = {'x': [], 'y': []}
for key in fig['layout']:
if 'xaxis' in key:
axis_labels['x'].append(key)
elif 'yaxis' in key:
axis_labels['y'].append(key)
string_number_in_data = False
for var in [v for v in [x, y] if v]:
if isinstance(df[var].tolist()[0], str):
for item in df[var]:
try:
int(item)
string_number_in_data = True
except ValueError:
pass
# Iterated through 'x' or 'y' axis
for x_y in axis_labels.keys():
# Iterate through all faceted axes
for axis_name in axis_labels[x_y]:
# Common to both x and y
if string_number_in_data:
fig['layout'][axis_name]['type'] = 'category'
fig['layout'][axis_name]['showgrid'] = False
fig['layout'][axis_name]['automargin'] = True
fig['layout'][axis_name]['zeroline'] = False
# Specific axis only
if x_y == 'x':
if hide_x_labels:
#TODO: test with 'visible' attribute instead of 'showticklabels'
fig['layout'][axis_name]['showticklabels'] = False
# Uniformity of tick angles if facet groupings are present
if facet_col:
fig['layout'][axis_name]['tickangle'] = 270
elif x_y == 'y':
fig['layout'][axis_name]['hoverformat'] = '.2f'
if hide_y_labels:
fig['layout'][axis_name]['showticklabels'] = False
fig['layout']['autosize'] = True
# legend
fig['layout']['showlegend'] = show_legend
fig['layout']['legend']['bgcolor'] = LEGEND_COLOR
fig['layout']['legend']['borderwidth'] = LEGEND_BORDER_WIDTH
fig['layout']['legend']['x'] = 1.05
fig['layout']['legend']['y'] = 1
fig['layout']['legend']['yanchor'] = 'top'
# Colorbar adjustments
if color_type == "numerical":
fig['layout']['coloraxis'] = {
"colorscale":
colormapping, # Defines the range of colors for a numerical color group
"colorbar": {
'x': 1.15
},
"showscale": True,
}
# Violin plot settings
if trace_type == 'violin':
if color_name:
fig['layout']['violinmode'] = 'group'
else:
fig['layout']['violinmode'] = 'overlay'
# assign annotations to figure
fig['layout']['annotations'] = annotations
# autoscale histogram bars
if trace_type not in ['scatter', 'line', 'scattergl']:
scales = 'free'
# validate scales
if scales not in ['fixed', 'free_x', 'free_y', 'free']:
raise exceptions.PlotlyError(
"'scales' must be set to 'fixed', 'free_x', 'free_y' and 'free'.")
fixed_axes = None
if scales == 'fixed':
fixed_axes = ['x', 'y']
elif scales == 'free_x':
fixed_axes = ['y']
elif scales == 'free_y':
fixed_axes = ['x']
elif scales == 'free':
fixed_axes = []
else:
raise (
"Invalid scale type provided. Must be 'fixed', 'free_x', 'free_y', or 'free'"
)
# SAdkins - Removed checks for None and length and sparse matrix check
# since recent edits should have all traces populated with data
if len(fig['data']):
# fixed ranges
for x_y in fixed_axes:
min_range = min(chain(*(trace[x_y] for trace in fig['data'])))
max_range = max(chain(*(trace[x_y] for trace in fig['data'])))
range_are_numbers = (isinstance(min_range, Number)
and isinstance(max_range, Number))
if PLOT_LOGGING:
print("DEBUG: On axis:{0} min_range:{1} max_range:{2}".format(
x_y, min_range, max_range),
file=sys.stderr)
user_dtick = None
if x_y == 'x':
user_dtick = dtick_x
elif x_y == 'y':
user_dtick = dtick_y
dtick, min_range, max_range = _calculate_dtick(
min_range, max_range, range_are_numbers, user_dtick)
# For the given axis dimension set tick attributes
for axis_title in axis_labels[x_y]:
fig['layout'][axis_title]['dtick'] = dtick
fig['layout'][axis_title]['ticklen'] = 0
if range_are_numbers:
fig['layout'][axis_title]['range'] = [min_range, max_range]
else:
if PLOT_LOGGING:
print("DEBUG: No trace data for current plot")
return fig