U Ev f]@s<dZddlZddlZddlmZdgZddddddZdS) z Stacked area plot for 1D arrays inspired by Douglas Y'barbo's stackoverflow answer: https://stackoverflow.com/q/2225995/ (https://stackoverflow.com/users/66549/doug) N)_api stackplotzero)labelscolorsbaselinec s`t|}t|}|dk r&t|}nfdd|D}tj|dt|jtjd}t j dddd g|d |dkrzd } n8|dkrt |d d } || dddf7}n|dkr|j d} || d t | dddf d} | | } || 7}n|d krt |d} t| } | dk} d | | | | <t|ddddft|f}| |}|d |7}|| }d |dddf<|d |}t| d}|d | } || 7}j|| |dddfft|t|dd|}dg|jjdd<|g}tt|dD]N}|j|||ddf||dddfft|t|dd|q |S)a Draw a stacked area plot. Parameters ---------- x : (N,) array-like y : (M, N) array-like The data is assumed to be unstacked. Each of the following calls is legal:: stackplot(x, y) # where y has shape (M, N) stackplot(x, y1, y2, y3) # where y1, y2, y3, y4 have length N baseline : {'zero', 'sym', 'wiggle', 'weighted_wiggle'} Method used to calculate the baseline: - ``'zero'``: Constant zero baseline, i.e. a simple stacked plot. - ``'sym'``: Symmetric around zero and is sometimes called 'ThemeRiver'. - ``'wiggle'``: Minimizes the sum of the squared slopes. - ``'weighted_wiggle'``: Does the same but weights to account for size of each layer. It is also called 'Streamgraph'-layout. More details can be found at http://leebyron.com/streamgraph/. labels : list of str, optional A sequence of labels to assign to each data series. If unspecified, then no labels will be applied to artists. colors : list of color, optional A sequence of colors to be cycled through and used to color the stacked areas. The sequence need not be exactly the same length as the number of provided *y*, in which case the colors will repeat from the beginning. If not specified, the colors from the Axes property cycle will be used. data : indexable object, optional DATA_PARAMETER_PLACEHOLDER **kwargs All other keyword arguments are passed to `.Axes.fill_between`. Returns ------- list of `.PolyCollection` A list of `.PolyCollection` instances, one for each element in the stacked area plot. Nc3s|]}jVqdS)N)Z _get_linesZget_next_color).0_axesr8/tmp/pip-unpacked-wheel-7vhvci0g/matplotlib/stackplot.py Mszstackplot..r)ZaxisdtypersymZwiggleZweighted_wiggle)rgg?g?)Z facecolorlabel)npZ row_stackiter itertoolscycleZcumsumZ promote_typesrZfloat32rZ check_in_listsumshapeZarangeZ zeros_likeZhstackZdiffZ fill_betweennextZ sticky_edgesyrangelenappend)r xrrrargskwargsrstack first_linemtotalZ inv_totalmaskZincreaseZ below_sizeZmove_upcenterZcollrirr r rsb5   (     $   , )__doc__rZnumpyrZ matplotlibr__all__rrrrr s