Dear Berend,
the coding is not working for more than 6. Try to plug 10 or other number.
Would you please correct ?
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ozzi wrote
>
> Dear Berend,
>
> the coding is not working for more than 6. Try to plug 10 or other number.
> Would you please correct ?
>
My mistake.
mkupper <- function(A) {
n <- length(A)
m <- (1+sqrt(1+8*n))/2
stopifnot(m==as.integer(m))
print(m)
L <- matrix(0,nrow=m,nc
Zhishi Wang wrote:
>
> Hi all,
>
> If I have a vector A<-1:6, I would like to convert A to an upper
> matrix M=[0 1 2 3 ; 0 0 4 5 ; 0 0 0 6; 0 0 0 0].
> That is, if the length of the known vector is n, then the order m of
> the matrix I'd like to have should satisfy m(m-1)/2=n
> How could I do t
Hi all,
If I have a vector A<-1:6, I would like to convert A to an upper
matrix M=[0 1 2 3 ; 0 0 4 5 ; 0 0 0 6; 0 0 0 0].
That is, if the length of the known vector is n, then the order m of
the matrix I'd like to have should satisfy m(m-1)/2=n
How could I do this in R?
I really don't want to do i
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