% mapping operations, example 1,
% stacked combining
%
% Copy to Matlab command window and run
% make sure prdatasets is in the path
prdatasets
% load Iris dataset
a = iris
% compute first principal component
w1 = pca(a,1)
% compute first LDA (Fisher mapping) component
w2 = fisherm(a,1)
% combine to 2D space
w = [w1 w2]
% map original dataset and show scatter
b = a*w
scatterd(b)