Create a 3 x 3 grid of quantile-quantile plots, the first of which corresponds to the input data. The other eight plots arise from simulating random normal data with the same mean, standard deviation, and length as the data. For use in comparing known-normal qqplots to an observed qqplot to assess normality.
qqnormsim(sample, data)
A 3 x 3 grid of qqplots.
the variable to be plotted.
data frame to use.