Re: [R] loop

m <- seq(-1,1,0.1) x1 <- c() x2 <- c() for(i in 1:length(m)){ x1[i] <- m[i] x2[i] <- m[i]^2 } dat <- data.frame(x1,x2) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Neuer Arkadasch Sent: March 5, 2008 10:00 AM To: [EMAIL PROTECTED] Subject: [R

Re: [R] addition of matrix

Hello Keith, Based on what you have done, please try this: M<-matrix(nrow=num.rows, ncol=num.x.col*num.y.col) for( i in 1:num.rows){M[i,]<-rep(Y[i,], each=num.y.col)} Z<-Z+M not elegant, but works. HTH YH Deng -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Beha

Re: [R] How to handle Which on two matrices that do not have samenumber of rows

How about this? PC[na.omit(match(P1[,1],PC[,1])),] HTH, DYH -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of My Coyne Sent: February 13, 2008 2:07 PM To: [EMAIL PROTECTED] Subject: [R] How to handle Which on two matrices that do not have samenumber of rows