Step-wise procedure for determining principal components

Step-wise procedure for determining principal components 

A problem when a matrix X is factorized by computing the eigenvalues and 

A standard procedure is to scale each descriptor to unit variance. 

Transform the descriptors, if necessary, prior to scaling see discussion on 

Another way of describing this is to say that X can be decomposed into the average matrix X and a matrix of residuals E = (X — X). 

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