[R] sort adjacency matrix

[Rui Barradas]

Hello,

You should have used ?dput to post your data example.
Since you haven't, I've made up one.

set.seed(4795)
mat <- matrix(sample(0:1, 24, replace = TRUE), nrow = 6)
mat

inx <- order(rowSums(mat), decreasing = TRUE)
mat[inx, ]


Hope this helps,

Rui Barradas

Em 06-04-2015 18:18, Ragia Ibrahim escreveu:
> Dear group
> i have the following matrix
>
> 1  . . 1 . . 1 . . . .
> 2  . . . . . . 1 . . .
> 3  1 . . . 1 . . 1 . 1
> 4  . . . . . 1 . . . .
> 5  . . 1 . . . . . . 1
> 6  1 . . 1 . . . . 1 .
> 7  . 1 . . . . . 1 . .
> 8  . . 1 . . . 1 . . 1
> 9  . . . . . 1 . . . 1
> 10 . . 1 . 1 . . 1 1 .
>
> I want to sort it according to ones in each row ascending (where max number of ones first)
>
> to be as follow
>
> 3  1 . . . 1 . . 1 . 1
> 10 . . 1 . 1 . . 1 1 .
> 6  1 . . 1 . . . . 1 .8  . . 1 . . . 1 . . 11  . . 1 . . 1 . . . .5  . . 1 . . . . . . 17  . 1 . . . . . 1 . .9  . . . . . 1 . . . 12  . . . . . . 1 . . .4  . . . . . 1 . . . .
>
> how can I do this in R
> thanks in advance
>   		 	   		
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