search for: xsvd

...etup for R 3.5.2 and older. Carrying out the install and linking instructions works fine for later Rs, but calculations involving linear algebra become corrupted. E.g., following Dirk's very simple svd example from that link above ... > n <- 1e3 > X <- matrix(rnorm(n*n),n,n) > Xsvd <- svd(X) > Xsvd$d[1:5] [1] 63.09366 62.47868 62.26147 61.94530 61.84727 ... you get Eigenvalues that are bigger than 1e26 in R-devel, say, but (correct) values near 60 with R 3.5.2. I just wanted to throw that out there in case anyone else had come across something similar. I don't mi...

...rrying out the install and linking > instructions works fine for later Rs, but calculations involving linear > algebra become corrupted. E.g., following Dirk's very simple svd example > from that link above ... > >> n <- 1e3 >> X <- matrix(rnorm(n*n),n,n) >> Xsvd <- svd(X) >> Xsvd$d[1:5] > [1] 63.09366 62.47868 62.26147 61.94530 61.84727 > > ... you get Eigenvalues that are bigger than 1e26 in R-devel, say, but > (correct) values near 60 with R 3.5.2. > > I just wanted to throw that out there in case anyone else had come across &g...

...> > instructions works fine for later Rs, but calculations involving linear > > algebra become corrupted. E.g., following Dirk's very simple svd example > > from that link above ... > > > >> n <- 1e3 > >> X <- matrix(rnorm(n*n),n,n) > >> Xsvd <- svd(X) > >> Xsvd$d[1:5] > > [1] 63.09366 62.47868 62.26147 61.94530 61.84727 > > > > ... you get Eigenvalues that are bigger than 1e26 in R-devel, say, but > > (correct) values near 60 with R 3.5.2. > > > > I just wanted to throw that out there in...

Hi, I met a probem recently and need your help. I would really appreciate it. I kept receiving the following error message when running a program: 'Error in svd(X) : infinite or missing values in x'. However, I did not use any svd function in this program though I did include the function pseudoinverse. Is the problem caused by doing pseudoinverse? Best regards, Tongtong