search for: shusong

Dear R Users, Are there any documents on the usage of apply, tapply, sapply so that I avoid explicit loops. I found that these three functions were quite hard to be understood. Thank you in advance. -- Jin

Dear all, Are there any packages can estimate the partial linear model. Or any one can give me any suggestions. Many thanks in advance. Jin

Dear all, I have 122 vectors named from L1 to L122. Now I hope to take log to each of the series, say L1 <- log(L1) ... L122<-log(L122) Can anyone show me a iterative way to make the job simple. I mean the way something like for(i in 1:122){ ... } or other similar methods. Many thanks. Jin

Dear R users, I downloaded an ess-5.2.2 package and hope to use emacs as front to work with R. I modified ~/.emacs and start R by M-x R. But I found when I quited the R session, it still asked me to save the work space or not. I added inferior-R-args with "--save" args. But it seemed that it had no effect. Can you tell me how to pass the arguments other than --no-readline to

Dear R-users, Has any one compiled R-1.9.1 successfully with Portland pgcc pgCC and pgf77? I can not configurate it with ./configure since it told me checking for Fortran name-mangling scheme... configure: error: cannot compile a simple Fortran program Can any one give me some advice. Thank you. My platform: Linux-2.4.26, pentium4, portland compiler 5.1

Dear all, Am new on this list but need help: I have a fortran code which I compile into a dynamic library (on Solaris). My probem is that when I call this code soon after starting R, it runs ok. But it doesn't for the second time without exiting R first. In this code I have to generate some random numbers. The problem is not about setting the seed. Anyone with an idea what might be going

Hello, I use Gentoo and I can't get R 2.0.1 to compile. I used the portage system, Gentoo's source package sytem, and after it uncompresses the source to R, it says that I don't have a fortran compiler. It told me to use f77 flag and re-emerge gcc, which I did with the f77 and fortran flags, but it still won't compile. Does anyone have any ideas? I suspect that gcc has changed