matplotlib.pyplot.step¶

matplotlib.pyplot.
step
(x, y, *args, where='pre', data=None, **kwargs)[source]¶ Make a step plot.
Call signatures:
step(x, y, [fmt], *, data=None, where='pre', **kwargs) step(x, y, [fmt], x2, y2, [fmt2], ..., *, where='pre', **kwargs)
This is just a thin wrapper around
plot
which changes some formatting options. Most of the concepts and parameters of plot can be used here as well.Note
This method uses a standard plot with a step drawstyle: The x values are the reference positions and steps extend left/right/both directions depending on where.
For the common case where you know the values and edges of the steps, use
stairs
instead.Parameters:  xarraylike
1D sequence of x positions. It is assumed, but not checked, that it is uniformly increasing.
 yarraylike
1D sequence of y levels.
 fmtstr, optional
A format string, e.g. 'g' for a green line. See
plot
for a more detailed description.Note: While full format strings are accepted, it is recommended to only specify the color. Line styles are currently ignored (use the keyword argument linestyle instead). Markers are accepted and plotted on the given positions, however, this is a rarely needed feature for step plots.
 dataindexable object, optional
An object with labelled data. If given, provide the label names to plot in x and y.
 where{'pre', 'post', 'mid'}, default: 'pre'
Define where the steps should be placed:
 'pre': The y value is continued constantly to the left from
every x position, i.e. the interval
(x[i1], x[i]]
has the valuey[i]
.  'post': The y value is continued constantly to the right from
every x position, i.e. the interval
[x[i], x[i+1])
has the valuey[i]
.  'mid': Steps occur halfway between the x positions.
 'pre': The y value is continued constantly to the left from
every x position, i.e. the interval
Returns:  list of
Line2D
Objects representing the plotted data.
Other Parameters:  **kwargs
Additional parameters are the same as those for
plot
.
Notes