You are reading an old version of the documentation (v2.2.5). For the latest version see
Version 2.2.5
Fork me on GitHub


matplotlib.pyplot.hlines(y, xmin, xmax, colors='k', linestyles='solid', label='', hold=None, data=None, **kwargs)[source]

Plot horizontal lines at each y from xmin to xmax.

y : scalar or sequence of scalar

y-indexes where to plot the lines.

xmin, xmax : scalar or 1D array_like

Respective beginning and end of each line. If scalars are provided, all lines will have same length.

colors : array_like of colors, optional, default: 'k'
linestyles : ['solid' | 'dashed' | 'dashdot' | 'dotted'], optional
label : string, optional, default: ''
lines : LineCollection
Other Parameters:
**kwargs : LineCollection properties.

See also

vertical lines
horizontal line across the axes
In addition to the above described arguments, this function can take a data keyword argument. If such a data argument is given, the following arguments are replaced by data[<arg>]: * All arguments with the following names: 'colors', 'xmax', 'xmin', 'y'.