Arguments
x
a grt object, as returned by fit.grt
level
number between 0 and 1 indicating which contour to plot (defaults to .5)
xlab
optional label for the x axis (defaults to NULL)
ylab
optional label for the y axis (defaults to NULL)
marginals
Boolean indicating whether or not to plot marginals (only available for 2x2 model; defaults to FALSE)
main
string to use as title of plot (defaults to empty string)
plot.mu
Boolean indicating whether or not to plot means (defaults to T)
...
Arguments to be passed to methods, as in generic plot function