black and white figure representing observations by the identifier of their class
kcmap(x,col1,col2,startpos,endpos,(labcol1),(labcol2))
a Div structure for which the labels x.i are used to identify classes for the observations
columns of x.d chosen for the abscissa and the ordinate respectivey
window within the strings of x.i which identifies the class of each observation
labels of the abscissa and the ordinate respectively