def _parse_validate_compile_intent(self):
from lux.processor.Parser import Parser
from lux.processor.Validator import Validator
self._intent = Parser.parse(self._intent)
Validator.validate_intent(self._intent, self)
self.maintain_metadata()
from lux.processor.Compiler import Compiler
self.current_vis = Compiler.compile_intent(self, self._intent)
def recommendation(self):
if self._recommendation is not None and self._recommendation == {}:
from lux.processor.Compiler import Compiler
self.maintain_metadata()
self.current_vis = Compiler.compile_intent(self, self._intent)
self.maintain_recs()
return self._recommendation
def refresh_source(self, ldf):
"""
Loading the source into the visualizations in the VisList, then populating each visualization
based on the new source data, effectively "materializing" the visualization collection.
Parameters
----------
ldf : LuxDataframe
Input Dataframe to be attached to the VisList
Returns
-------
VisList
Complete VisList with fully-specified fields
See Also
--------
lux.vis.Vis.refresh_source
Note
----
Function derives a new _inferred_intent by instantiating the intent specification on the new data
"""
if ldf is not None:
from lux.processor.Parser import Parser
from lux.processor.Validator import Validator
from lux.processor.Compiler import Compiler
self._source = ldf
self._source.maintain_metadata()
if len(self._input_lst) > 0:
approx = False
if self._is_vis_input():
compiled_collection = []
for vis in self._collection:
vis._inferred_intent = Parser.parse(vis._intent)
Validator.validate_intent(vis._inferred_intent, ldf)
Compiler.compile_vis(ldf, vis)
compiled_collection.append(vis)
self._collection = compiled_collection
else:
self._inferred_intent = Parser.parse(self._intent)
Validator.validate_intent(self._inferred_intent, ldf)
self._collection = Compiler.compile_intent(
ldf, self._inferred_intent)
# Early pruning determination criteria
width_criteria = len(self._collection) > (lux.config.topk + 3)
length_criteria = len(
ldf) > lux.config.early_pruning_sample_start
if lux.config.early_pruning and width_criteria and length_criteria:
# print("Apply approx to this VisList")
ldf._message.add_unique(
"Large search space detected: Lux is approximating the interestingness of recommended visualizations.",
priority=1,
)
approx = True
lux.config.executor.execute(self._collection,
ldf,
approx=approx)
def refresh_source(self, ldf):
"""
Loading the source into the visualizations in the VisList, then populating each visualization
based on the new source data, effectively "materializing" the visualization collection.
Parameters
----------
ldf : LuxDataframe
Input Dataframe to be attached to the VisList
Returns
-------
VisList
Complete VisList with fully-specified fields
See Also
--------
lux.vis.Vis.refresh_source
Note
----
Function derives a new _inferred_intent by instantiating the intent specification on the new data
"""
if (ldf is not None):
from lux.processor.Parser import Parser
from lux.processor.Validator import Validator
from lux.processor.Compiler import Compiler
self._source = ldf
self._source.maintain_metadata()
if len(self._input_lst) > 0:
if (self._is_vis_input()):
compiled_collection = []
for vis in self._collection:
vis._inferred_intent = Parser.parse(vis._intent)
Validator.validate_intent(vis._inferred_intent, ldf)
vislist = Compiler.compile_vis(ldf, vis)
if (len(vislist) > 0):
vis = vislist[0]
compiled_collection.append(vis)
self._collection = compiled_collection
else:
self._inferred_intent = Parser.parse(self._intent)
Validator.validate_intent(self._inferred_intent, ldf)
self._collection = Compiler.compile_intent(
ldf, self._inferred_intent)
ldf.executor.execute(self._collection, ldf)
def set_intent_on_click(self, change):
from IPython.display import display, clear_output
from lux.processor.Compiler import Compiler
intent_action = list(self._widget.selectedIntentIndex.keys())[0]
vis = self.recommendation[intent_action][self._widget.selectedIntentIndex[intent_action][0]]
self.set_intent_as_vis(vis)
self.maintain_metadata()
self.current_vis = Compiler.compile_intent(self, self._intent)
self.maintain_recs()
with self.output:
clear_output()
display(self._widget)
self._widget.observe(self.remove_deleted_recs, names="deletedIndices")
self._widget.observe(self.set_intent_on_click, names="selectedIntentIndex")
def _repr_html_(self):
from IPython.display import display
from IPython.display import clear_output
import ipywidgets as widgets
try:
if self._pandas_only:
display(self.display_pandas())
self._pandas_only = False
else:
if self.index.nlevels >= 2 or self.columns.nlevels >= 2:
warnings.warn(
"\nLux does not currently support dataframes "
"with hierarchical indexes.\n"
"Please convert the dataframe into a flat "
"table via `pandas.DataFrame.reset_index`.\n",
stacklevel=2,
)
display(self.display_pandas())
return
if len(self) <= 0:
warnings.warn(
"\nLux can not operate on an empty dataframe.\nPlease check your input again.\n",
stacklevel=2,
)
display(self.display_pandas())
return
self.maintain_metadata()
if self._intent != [] and (not hasattr(self, "_compiled") or not self._compiled):
from lux.processor.Compiler import Compiler
self.current_vis = Compiler.compile_intent(self, self._intent)
if lux.config.default_display == "lux":
self._toggle_pandas_display = False
else:
self._toggle_pandas_display = True
# df_to_display.maintain_recs() # compute the recommendations (TODO: This can be rendered in another thread in the background to populate self._widget)
self.maintain_recs()
# Observers(callback_function, listen_to_this_variable)
self._widget.observe(self.remove_deleted_recs, names="deletedIndices")
self._widget.observe(self.set_intent_on_click, names="selectedIntentIndex")
if len(self.recommendation) > 0:
# box = widgets.Box(layout=widgets.Layout(display='inline'))
button = widgets.Button(
description="Toggle Pandas/Lux",
layout=widgets.Layout(width="140px", top="5px"),
)
self.output = widgets.Output()
# box.children = [button,output]
# output.children = [button]
# display(box)
display(button, self.output)
def on_button_clicked(b):
with self.output:
if b:
self._toggle_pandas_display = not self._toggle_pandas_display
clear_output()
if self._toggle_pandas_display:
display(self.display_pandas())
else:
# b.layout.display = "none"
display(self._widget)
# b.layout.display = "inline-block"
button.on_click(on_button_clicked)
on_button_clicked(None)
else:
warnings.warn(
"\nLux defaults to Pandas when there are no valid actions defined.",
stacklevel=2,
)
display(self.display_pandas())
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
warnings.warn(
"\nUnexpected error in rendering Lux widget and recommendations. "
"Falling back to Pandas display.\n"
"Please report the following issue on Github: https://github.com/lux-org/lux/issues \n",
stacklevel=2,
)
warnings.warn(traceback.format_exc())
display(self.display_pandas())
def _ipython_display_(self):
from IPython.display import HTML, Markdown, display
from IPython.display import clear_output
import ipywidgets as widgets
try:
if self._pandas_only:
display(self.display_pandas())
self._pandas_only = False
if not self.index.nlevels >= 2 or self.columns.nlevels >= 2:
self.maintain_metadata()
if self._intent != [] and (not hasattr(self, "_compiled")
or not self._compiled):
from lux.processor.Compiler import Compiler
self.current_vis = Compiler.compile_intent(
self, self._intent)
if lux.config.default_display == "lux":
self._toggle_pandas_display = False
else:
self._toggle_pandas_display = True
# df_to_display.maintain_recs() # compute the recommendations (TODO: This can be rendered in another thread in the background to populate self._widget)
self.maintain_recs()
# Observers(callback_function, listen_to_this_variable)
self._widget.observe(self.remove_deleted_recs,
names="deletedIndices")
self._widget.observe(self.set_intent_on_click,
names="selectedIntentIndex")
button = widgets.Button(
description="Toggle Table/Lux",
layout=widgets.Layout(width="200px", top="6px", bottom="6px"),
)
self.output = widgets.Output()
self._sampled = lux.config.executor.execute_preview(self)
display(button, self.output)
def on_button_clicked(b):
with self.output:
if b:
self._toggle_pandas_display = not self._toggle_pandas_display
clear_output()
# create connection string to display
connect_str = self.table_name
connection_type = str(type(lux.config.SQLconnection))
if "psycopg2.extensions.connection" in connection_type:
connection_dsn = lux.config.SQLconnection.get_dsn_parameters(
)
host_name = connection_dsn["host"]
host_port = connection_dsn["port"]
dbname = connection_dsn["dbname"]
connect_str = host_name + ":" + host_port + "/" + dbname
elif "sqlalchemy.engine.base.Engine" in connection_type:
db_connection = str(lux.config.SQLconnection)
db_start = db_connection.index("@") + 1
db_end = len(db_connection) - 1
connect_str = db_connection[db_start:db_end]
if self._toggle_pandas_display:
notification = "Here is a preview of the **{}** database table: **{}**".format(
self.table_name, connect_str)
display(Markdown(notification),
self._sampled.display_pandas())
else:
# b.layout.display = "none"
display(self._widget)
# b.layout.display = "inline-block"
button.on_click(on_button_clicked)
on_button_clicked(None)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
if lux.config.pandas_fallback:
warnings.warn(
"\nUnexpected error in rendering Lux widget and recommendations. "
"Falling back to Pandas display.\n"
"Please report the following issue on Github: https://github.com/lux-org/lux/issues \n",
stacklevel=2,
)
warnings.warn(traceback.format_exc())
display(self.display_pandas())
else:
raise
def _repr_html_(self):
from IPython.display import display
from IPython.display import clear_output
import ipywidgets as widgets
try:
if (self._pandas_only):
display(self.display_pandas())
self._pandas_only = False
else:
if (self.index.nlevels >= 2 or self.columns.nlevels >= 2):
warnings.warn(
"\nLux does not currently support dataframes "
"with hierarchical indexes.\n"
"Please convert the dataframe into a flat "
"table via `pandas.DataFrame.reset_index`.\n",
stacklevel=2,
)
display(self.display_pandas())
return
if (len(self) <= 0):
warnings.warn(
"\nLux can not operate on an empty dataframe.\nPlease check your input again.\n",
stacklevel=2)
display(self.display_pandas())
return
if (len(self.columns) <= 1):
warnings.warn(
"\nLux defaults to Pandas when there is only a single column.",
stacklevel=2)
display(self.display_pandas())
return
self.maintain_metadata()
if (self._intent != [] and
(not hasattr(self, "_compiled") or not self._compiled)):
from lux.processor.Compiler import Compiler
self.current_vis = Compiler.compile_intent(
self, self._intent)
self._toggle_pandas_display = self._default_pandas_display # Reset to Pandas Vis everytime
# df_to_display.maintain_recs() # compute the recommendations (TODO: This can be rendered in another thread in the background to populate self._widget)
self.maintain_recs()
# box = widgets.Box(layout=widgets.Layout(display='inline'))
button = widgets.Button(description="Toggle Pandas/Lux",
layout=widgets.Layout(width='140px',
top='5px'))
output = widgets.Output()
# box.children = [button,output]
# output.children = [button]
# display(box)
display(button, output)
def on_button_clicked(b):
with output:
if (b):
self._toggle_pandas_display = not self._toggle_pandas_display
clear_output()
if (self._toggle_pandas_display):
display(self.display_pandas())
else:
# b.layout.display = "none"
display(self._widget)
# b.layout.display = "inline-block"
button.on_click(on_button_clicked)
on_button_clicked(None)
except (KeyboardInterrupt, SystemExit):
raise
except:
warnings.warn(
"\nUnexpected error in rendering Lux widget and recommendations. "
"Falling back to Pandas display.\n\n"
"Please report this issue on Github: https://github.com/lux-org/lux/issues ",
stacklevel=2)
display(self.display_pandas())
def _ipython_display_(self):
from IPython.display import display
from IPython.display import clear_output
import ipywidgets as widgets
try:
if self._pandas_only:
display(self.display_pandas())
self._pandas_only = False
else:
if not self.index.nlevels >= 2 or self.columns.nlevels >= 2:
self.maintain_metadata()
if self._intent != [] and (not hasattr(self, "_compiled")
or not self._compiled):
from lux.processor.Compiler import Compiler
self.current_vis = Compiler.compile_intent(
self, self._intent)
if lux.config.default_display == "lux":
self._toggle_pandas_display = False
else:
self._toggle_pandas_display = True
# df_to_display.maintain_recs() # compute the recommendations (TODO: This can be rendered in another thread in the background to populate self._widget)
self.maintain_recs()
# Observers(callback_function, listen_to_this_variable)
self._widget.observe(self.remove_deleted_recs,
names="deletedIndices")
self._widget.observe(self.set_intent_on_click,
names="selectedIntentIndex")
button = widgets.Button(
description="Toggle Pandas/Lux",
layout=widgets.Layout(width="140px", top="5px"),
)
self.output = widgets.Output()
display(button, self.output)
def on_button_clicked(b):
with self.output:
if b:
self._toggle_pandas_display = not self._toggle_pandas_display
clear_output()
if self._toggle_pandas_display:
display(self.display_pandas())
else:
# b.layout.display = "none"
display(self._widget)
# b.layout.display = "inline-block"
button.on_click(on_button_clicked)
on_button_clicked(None)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
if lux.config.pandas_fallback:
warnings.warn(
"\nUnexpected error in rendering Lux widget and recommendations. "
"Falling back to Pandas display.\n"
"Please report the following issue on Github: https://github.com/lux-org/lux/issues \n",
stacklevel=2,
)
warnings.warn(traceback.format_exc())
display(self.display_pandas())
else:
raise
