perClass Documentation
version 5.4 (7-Dec-2018)
 DEFAULT_MARKERS Return the list of default markers

 Return N markers based on pre-defined categories

 Generate random markers

    N    number of classes

    ML   marker list (cell array with marker strings)
    CL   color list (cell array with color vectors)

 DEFAULT_MARKERS is used to populate marker list property of newly
 created data sets.
 You may change this function to provide custom markers and colors.