[R] Summation in R

2006-10-03 Thread Dina Said
Hello! Maybe this is a trivial question as I'm still a new baby in R but I wish that u will help me. I want to calculate the following U= sum (t_j*v_j) where t_j is a vector and v_j is the matrix Thanks Dina __ R-help@stat.math.ethz.ch mailing

[R] tcltk problem

2006-09-20 Thread Dina Said
Hi, I'm using fedora core 3. I downloaded R and installed it. After that, I invoked R by the root user and write the command install.packages(Rcmdr, dependencies=TRUE). This command installs Rcmdr automatically. However, whenever I type library(Rcmdr), it tells me that Loading required