Re: [R] Rows for a list of values

Dear Alberto, One way would be: m1[ m1[,1] %in% m2, ] See ?"%in%" for more details. HTH, Jorge On Mon, Jul 20, 2009 at 7:06 AM, Alberto Lora M wrote: > Hi could yelp me with this > > Suppose that we have the following matrix > > m1<-matrix(c("a","e","a","i","o","u","i","1","2","3","4","5","

Re: [R] Rows for a list of values

Is this what you want: > m1<-matrix(c("a","e","a","i","o","u","i","1","2","3","4","5","6","7"), + ncol=2) > m2<-c("a","i") > m1 [,1] [,2] [1,] "a" "1" [2,] "e" "2" [3,] "a" "3" [4,] "i" "4" [5,] "o" "5" [6,] "u" "6" [7,] "i" "7" > m1[m1[,1] %in% m2,] [,1] [,2] [1,] "a" "1" [2,]

[R] Rows for a list of values

Hi could yelp me with this Suppose that we have the following matrix m1<-matrix(c("a","e","a","i","o","u","i","1","2","3","4","5","6","7"), ncol=2) m2<-c("a","i") m1 [,1] [,2] [1,] "a" "1" [2,] "e" "2" [3,] "a" "3" [4,] "i" "4" [5,] "o" "5" [6,] "u" "6" [7,] "i" "7" I want to obt