Hi, I've got a quick question about what happens when indexing into matrices with a single column. I was wondering if anyone can help ... For example: > x <- matrix(1:10)
> y <- cbind(x,x) > x[4:6,] [1] 4 5 6 > y[4:6,] [,1] [,2] [1,] 4 4 [2,] 5 5 [3,] 6 6 > class(x[4:6,]) [1] "integer" > class(y[4:6,]) [1] "matrix" It seems that R is returning the results of indexing into a matrix with one column as a vector rather than a matrix? Does anyone have a good way of preventing this from happening? cheers, crispin -------------------------------------------------------- This email is confidential and intended solely for the use o...{{dropped}} ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html