Displaying 2 results from an estimated 2 matches for "index_i".
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2002 Feb 20
3
Feature Request: "matrix[1:10,1:10, block=F] <- 1:10"
Hi Guys,
I've again been surprised when something like
> m <- matrix("", nrow=3,ncol=3)
> index_i <- c(2,1,3)
> index_j <- c(1,3,2)
> vals <- c("a","b","c")
> m[ index_i, index_j ] <- vals
> m
gives block-wise application of the assignment:
[,1] [,2] [,3]
[1,] "b" "b" "b"
[2,] "a" "a...
2002 Feb 20
1
Bug in "[<-.matrix"? (Was: Feature Request: "matrix[1:10,1:10, block=F] <- 1:10")
...arnes@groton.pfizer.com
> Cc: r-devel@hypatia.math.ethz.ch
> Subject: [Rd] Feature Request: "matrix[1:10,1:10, block=F] <- 1:10"
>
>
> Gregory R Warnes <gregory_r_warnes@groton.pfizer.com> wrote:
> R> m <- matrix("", nrow=3,ncol=3)
> R> index_i <- c(2,1,3)
> R> index_j <- c(1,3,2)
> R> vals <- c("a","b","c")
> R> m[ index_i, index_j ] <- vals
>
> but what he wants to get is:
> > [,1] [,2] [,3]
> > [1,] "" "" "b"
&...