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.

doc_statsmodels
2017-01-18 16:10:13
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