Re: [R] Principal componet plot from lower triangular matrix file

Yes. I agree that plot is going to be crowded. But idea is to see if elements of same type (different color code etc) group together or not. I would need only first two principal components (at most three). Since princomp calculates all components, it is taking very long time ! -- View this mes

Re: [R] Principal componet plot from lower triangular matrix file

R distance objects are triangular, maybe consider as.dist() that would require the square matrix as input. Which could be reconstructed(or you have it already.) I do not know if there is a biglm() alternative to princomp(), but maybe consider using subsets of your data because that plot, if crea

[R] Principal componet plot from lower triangular matrix file

Hi, I have a comma separated file with element names in first column like shown below : Name_1,0 Name_2,0.8878,0 Name_3,0.6777,0.7643,0 Name_4,0.9844,0.1234,0.1414,0 Original data is a 1x1 symmetric matrix (600 MB). To reduce file size, I have minimized matrix to only lower triangle. Is