Wrapper for pca_apply that allows for application to large X. Wrapper for pca_apply that splits and processes X in parts, this may be useful if processing cannot be done fully in parallel because of memory constraints. See pca_apply for usage. INPUTS same as pca_apply OUTPUTS same as pca_apply DATESTAMP 29-Nov-2005 2:00pm See also PCA, PCA_APPLY, PCA_VISUALIZE