Hi, FWIW, it's a known feature that GRASS's i.pca and R's version give transposed output. It's just cosmetic and the row and column headers tell you what's what. GRASS lists the principal components row-wise, R presents them column-wise.
See discussion and GRASS vs. R testing/validation w/Nikos from c. March 2009. (& trac ticket #430) See also other open i.pca tickets: "i.pca fails to center data prior to analysis" http://trac.osgeo.org/grass/ticket/576 "i.pca: close map before writing out metadata?" http://trac.osgeo.org/grass/ticket/511 "i.pca metadata truncated" http://trac.osgeo.org/grass/ticket/1279 Hamish _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
