LCOV_PCA Principal Component Analysis on a covariance object. [W,DW,D] = LCOV_PCA(HANDLE[, DIM_RANGE]) performs PCA _and_ whitening on the covariance object referenced by HANDLE. W is the whitening matrix, DW the dewhitening matrix and D an array containing a list of the eigenvalues. ! LCOV_FIX must have been called _before_ you call this function. If DIM_RANGE is specified, only the first DIM_RANGE components are keeped or the components in the range DIM_RANGE(1)..DIM_RANGE(2). See also LCOV_FIX.