Re: [R] Select the same rows

thanks Seangduan sangduan J. wrote: Hi all, I have a problem selecting some rows from a random data. I'd like to select the same rows (before 0) . For example: A [1] 0 [2] 1 [3] 2 [4] 0 [5] 1 [6] 0 [7] 1 [8] 2 [9] 3 [10] 4 I'd like to select the

[R] Select the same rows

Hi all, I have a problem selecting some rows from a random data. I'd like to select the same rows (before 0) . For example: A [1] 0 [2] 1 [3] 2 [4] 0 [5] 1 [6] 0 [7] 1 [8] 2 [9] 3 [10] 4 I'd like to select the row where a = 2 1 4 I searched on the search of the R site

Re: [R] Select the same rows

It is unclear what you really want so here are two solutions to two different questions: A - matrix(c(0,1,2,0,1,0,1,2,3,4), ncol=1) A [,1] [1,]0 [2,]1 [3,]2 [4,]0 [5,]1 [6,]0 [7,]1 [8,]2 [9,]3 [10,]4 A[A[,1] %in% c(2,1,4) , ] [1] 1 2 1