healpy.projaxes.GnomonicAxes.stackplot¶
-
GnomonicAxes.
stackplot
(x, *args, **kwargs)¶ Draws a stacked area plot.
x : 1d array of dimension N
- y : 2d array of dimension MxN, OR any number 1d arrays each of dimension
1xN. The data is assumed to be unstacked. Each of the following calls is legal:
stackplot(x, y) # where y is MxN stackplot(x, y1, y2, y3, y4) # where y1, y2, y3, y4, are all 1xNm
Keyword arguments:
- baseline : [‘zero’, ‘sym’, ‘wiggle’, ‘weighted_wiggle’]
- Method used to calculate the baseline. ‘zero’ is just a simple stacked plot. ‘sym’ is 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://www.leebyron.com/else/streamgraph/.
- colors : A list or tuple of colors. These will be cycled through and
- used to colour the stacked areas.
All other keyword arguments are passed to
fill_between()
Returns r : A list of
PolyCollection
, one for each element in the stacked area plot.Note that
Legend
does not supportPolyCollection
objects. To create a legend on a stackplot, use a proxy artist: http://matplotlib.org/users/legend_guide.html#using-proxy-artist