Plot of the accuracy of classification with an increasing number of features.
PlotTestAccuracy(mSetObj=NA, imgName, format="png", dpi=72)
Input the name of the created mSetObj (see InitDataObjects)
Input a name for the plot
Select the image format, "png", of "pdf".
Input the dpi. If the image format is "pdf", users need not define the dpi. For "png" images, the default dpi is 72. It is suggested that for high-resolution images, select a dpi of 300.