plotc

PLOTC

Plot classifiers

PLOTC(W,S,LINE_WIDTH)
PLOTC(W,LINE_WIDTH,S)

Plots the discriminant as given by the mapping W on predefined axis, typically set by scatterd. Discriminants are defined by the points where class differences for mapping values are zero.

S is the plot string, e.g. S = 'b--'. In case S = 'col' a color plot is produced filling the regions of different classes with different colors. Default S = 'k-';

LINE_WIDTH sets the width of the lines and box. Default LINE_WIDTH = 1.5

In W a cell array of classifiers may be given. In S a set of plot strings of appropriate size may be given. Automatically a legend is added to the plot.

The linear gridsize is read from the global parameter GRIDSIZE, that

can be set by the function gridsize: for instance 'gridsize(100)'
default gridsize is 30. As all these points have to be classified (e.g.
100x100) this always done in batch mode. If needed desired the default
batch size may be changed by PRGLOBAL.

Examples in PREX_CONFMAT, PREX_PLOTC

Plot classifiers

See also