Calculating PC values on a correlation matrix

Discussion created by mcorrell13 on Oct 4, 2013
Hello all-

I am working on running a PCA on a composite band raster within Arc. I would like to run the PCA on the correlation, not the covariance, matrix derived from the dataset. Arc definitely calculates a correlation matrix because it is included in the output, however it seems to calculate the resulting cell values from the covariance matrix. Is there any way to produce a correlation matrix set of PCs?

Thanks very much,