Hello,
Please keep this on the list, R-help is threaded and it becomes part of
the archives, maybe it will be usefull to others.
You are now asking 2 other different questions.
Are you looking for something like this?
two_values_mat <- function(n, fill = 1, diagonal = 0){
m <-
This sounds like a homework question...
But... numerical linear algebra rocks...
cbind (diag (1:3), 4:6)
On Sat, May 23, 2020 at 9:46 PM Vahid Borji wrote:
>
> Hi my friends,
>
> I want to make the below matrix in r:
>
> 1 0 0 4
>
> 0 2 0 5
>
> 0 0 3 6
>
> I used the below code:
>
>
Hello,
Use diag() and cbind().
special_mat <- function(n){
if(n %% 2 != 0) {
msg <- paste(sQuote(n), 'is not a multiple of 2, will use')
n <- 2*(n%/% 2)
msg <- paste(msg, sQuote(n))
warning(msg)
}
x <- diag(n/2)
diag(x) <- seq.int(n/2)
cbind(x, (n/2 + 1):n)
}
Dear Vahid,
Would this help?
> row1<- c(1,0,0,4)
> row2<- c(0,2,0,5)
> row3<- c(0,0,3,6)
> mymatrix <- rbind(row1,row2,row3)
> mymatrix
[,1] [,2] [,3] [,4]
row11004
row20205
row30036
>
Best Regards,
Ashim
On Sat, May 23, 2020 at 3:16 PM
Hi my friends,
I want to make the below matrix in r:
1 0 0 4
0 2 0 5
0 0 3 6
I used the below code:
matrix(c(1,0,0,0,2,0,0,0,3,4,5,6),nrow=3)
My code works. But I do not like my solution way. I am thinking to find the
simplest way for making this matrix. Do you think my code is the simplest
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