statsmodels.graphics.gofplots.ProbPlot.ppplot¶
-
ProbPlot.
ppplot
(xlabel=None, ylabel=None, line=None, other=None, ax=None, **plotkwargs)[source]¶ P-P plot of the percentiles (probabilities) of x versus the probabilities (percetiles) of a distribution.
Parameters: xlabel, ylabel : str or None, optional
User-provided lables for the x-axis and y-axis. If None (default), other values are used depending on the status of the kwarg other.
line : str {‘45’, ‘s’, ‘r’, q’} or None, optional
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.
other : ProbPlot instance, array-like, or None, optional
If provided, the sample quantiles of this ProbPlot instance are plotted against the sample quantiles of the other ProbPlot instance. If an array-like object is provided, it will be turned into a ProbPlot instance using default parameters. If not provided (default), the theoretical quantiles are used.
ax : Matplotlib AxesSubplot instance, optional
If given, this subplot is used to plot in instead of a new figure being created.
**plotkwargs : additional matplotlib arguments to be passed to the
plot command.
Returns: fig : Matplotlib figure instance
If ax is None, the created figure. Otherwise the figure to which ax is connected.