Generate QQ plots for Variance modeling in IQ-Learning.
qqplot(x, y, plot.it = TRUE, xlab = deparse(substitute(x)),
ylab = deparse(substitute(y)),...)
# S4 method for IQLearnFS_VHet
qqplot(x, y, plot.it = TRUE, xlab = deparse(substitute(x)),
ylab = deparse(substitute(y)),...)
An object of class "IQLearnFS_VHet"
.
Ignored.
logical. Should the result be plotted?
Plot labels.
Plot labels.
Graphical parameters.
Generates a qq-plot for the variance modeling step of the IQ-Learning algorithm. This plot is used to determine if the normal or empirical density estimator is appropriate. If the observations deviate from the line, den='nonpar' should be used in the final IQ-Learning step.