[R] combining column having same values

[Rui Barradas]

Hello,

Try

x <- scan(text = " 1      1       3      2       3       1      1 
2      3       3      2")
sapply(unique(x), function(.x) which(x == .x))


Hope this helps,

Rui Barradas

Em 06-03-2013 11:26, eliza botto escreveu:
>
> Dear useRs,
> I have a matrix in the following form
>
>   [,1]   [,2]   [,3]   [,4]   [,5]   [,6]   [,7]   [,8]   [,9]  [,10]  [,11]      1      1       3      2       3       1      1       2      3       3      2
>
> and following is my desired output  (combining the column headers, having same values).
> a<-1,2,6,7
>
> b<-3,5,9,10
>
> c<-4,8,11
> Thanks in advance
> Elisa 		 	   		
> 	[[alternative HTML version deleted]]
>
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