How can I get the list of non-zero features from svmpath at any given lambda? All I get is following information and information about what features were selected. In Iris example, we have 4 features and 60 cases. In my own example which is 200cases by 300 features, I can't figure out how to print the list of non-zero (beta) or features from svmpath.
Any help? Thanks. ---------------- > solution <- svmpath(as.matrix(iris[1:60,1:4]), buffer, type="class", trace=FALSE) > names(solution) [1] "alpha" "alpha0" "lambda" "alpha00" "Error" "SumEps" [7] "Size.Elbow" "Elbow" "Moveto" "Movefrom" "Obs.step" "Step" [13] "kernel" "param.kernel" "x" "y" "call" > solution$alpha0 [1] 130.785000 108.685000 106.210000 86.130000 85.485000 71.176837 68.197549 67.660686 [9] 60.847899 58.442887 53.721098 53.544146 44.610000 44.525517 44.415343 39.709048 [17] 38.832267 36.940401 33.800161 28.115484 25.859545 25.734545 24.818367 19.666905 [25] 18.833000 17.768614 17.219663 16.737715 15.503339 14.717148 8.586288 > solution$Obs.step [1] 27 53 27 53 32 51 32 51 26 55 6 55 57 6 44 57 59 44 19 44 59 52 19 44 21 52 56 21 52 42 26 [32] 56 45 52 54 42 [[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.