Makes a plot with misclassified ratio values vs. model complexity (e.g. number of components)
# S3 method for classmodel
plotMisclassified(obj, nc = NULL, ...)classification model (object of class plsda, simca, etc.).
if there are several classes, which class to make the plot for (NULL - summary for all classes).
most of the graphical parameters from mdaplotg function can be used.