graphics.gofplots.qqline()

statsmodels.graphics.gofplots.qqline

statsmodels.graphics.gofplots.qqline(ax, line, x=None, y=None, dist=None, fmt='r-') [source]

Plot a reference line for a qqplot.

Parameters:

ax : matplotlib axes instance The axes on which to plot the line line : str {‘45’,’r’,’s’,’q’} Options for the reference line to which the data is compared.: ‘45’ - 45-degree line ‘s’ - standardized line, the expected order statistics are scaled by the standard deviation of the given sample and have the mean added to them ‘r’ - A regression line is fit ‘q’ - A line is fit through the quartiles. None - By default no reference line is added to the plot. x : array X data for plot. Not needed if line is ‘45’. y : array Y data for plot. Not needed if line is ‘45’. dist : scipy.stats.distribution A scipy.stats distribution, needed if line is ‘q’.

Notes

There is no return value. The line is plotted on the given ax.