def _build_axes(y):
axes = {'xaxis': dict(title=update_label_for_freq(x))}
positions = []
for i, y2 in enumerate(y, 0):
right = i % 2 == 1
axis_ct = int(i / 2)
title = update_label_for_freq(y2)
if z is None and agg is not None:
title = '{} ({})'.format(title, AGGS[agg])
value = dict(title=title)
if i == 0:
key = 'yaxis'
else:
key = 'yaxis{}'.format(i + 1)
value = dict_merge(
value,
dict(overlaying='y', side='right' if right else 'left'))
value['anchor'] = 'free' if axis_ct > 0 else 'x'
if axis_ct > 0:
pos = axis_ct / 20.0
value['position'] = (1 - pos) if right else pos
positions.append(value['position'])
if y2 in axis_inputs and not (axis_inputs[y2]['min'],
axis_inputs[y2]['max']) == (
mins[y2], maxs[y2]):
value['range'] = [
axis_inputs[y2]['min'], axis_inputs[y2]['max']
]
if classify_type(dtypes.get(y2)) == 'I':
value['tickformat'] = '.0f'
axes[key] = value
if len(positions):
if len(positions) == 1:
domain = [positions[0] + 0.05, 1]
elif len(positions) == 2:
domain = sorted(positions)
domain = [domain[0] + 0.05, domain[1] - 0.05]
else:
lower, upper = divide_chunks(sorted(positions), 2)
domain = [lower[-1] + 0.05, upper[0] - 0.05]
axes['xaxis']['domain'] = domain
if classify_type(dtypes.get(x)) == 'I':
axes['xaxis']['tickformat'] = '.0f'
if z is not None:
axes['zaxis'] = dict(
title=z if agg is None else '{} ({})'.format(z, AGGS[agg]))
if classify_type(dtypes.get(z)) == 'I':
axes['zaxis']['tickformat'] = '.0f'
return axes
def cpg_chunker(charts, columns=2):
"""
Helper function to break a list of charts up into rows of two. If there is only one chart it will only return
one row with the chart occupying the full width.
:param charts: chart objects
:type charts: list of :dash:`dash_core_components.Groph <dash-core-components/graph>`
:param columns: how many columns each row of charts should have (default: 2)
:type columns: int
:return: list of rows by `columns` if more than one chart is input otherwise simply return the chart
"""
if len(charts) == 1:
return charts
return [
html.Div([html.Div(c, className='col-md-6') for c in chunk],
className='row') for chunk in divide_chunks(charts, columns)
]