Hi list, I am not a frequent user of R. Recently I used R in principal component analysis and got the result as a class, which has information like standard deviation and principal components from 1 to 10. How is it possible to extract the column corresponding to first principal component and write it to a file the out from prcomp command is something like this
Standard deviations: [1] 3.325801e+00 7.669837e-01 6.625773e-01 4.990732e-01 3.470071e-01 [6] 2.946679e-01 2.206289e-01 1.645828e-01 1.570887e-01 4.741294e-16 Rotation: PC1 PC2 PC3 PC4 PC5 [1,] -0.07900624 -0.0824864352 0.1208419434 0.1763425845 0.089545020 [2,] -0.09114708 -0.0901675110 0.1377608881 0.2224127252 0.076620976 [3,] -0.10510742 -0.0935434206 0.1113586044 0.2513993555 0.029783117 I want to extract PC1 and 1 value in the standard deviation Thanks -- Nuncio.M Research Scientist National Center for Antarctic and Ocean research Head land Sada Vasco da Gamma Goa-403804 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.