[R] Transforming matrix

[Sundar Dorai-Raj]

Assuming that TRUE==1 and FALSE==0, just do

 > x = matrix(c(TRUE,TRUE,FALSE,FALSE),2,2)
 > x
      [,1]  [,2]
[1,] TRUE FALSE
[2,] TRUE FALSE
 > as.numeric(x)
[1] 1 1 0 0
 > array(as.numeric(x),dim=dim(x))
      [,1] [,2]
[1,]    1    0
[2,]    1    0



Ramzi Feghali wrote:
> hi everybody, 
> anyone knows how we can transform a binary matrix with TRUE and FALSE to 0 and 1 without looping? 
> Thx 
> 
> 
> 
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