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 obtain a new matrix with the rows from m1 where values of m2 are
present
for instance
[,1] [,2]
[1,] "a" "1"
[3,] "a" "3"
[4,] "i" "4"
[7,] "i" "7"
Bets Regards
--
Alberto Lora Michiels
Rue du Progrès, 6B
7860 Lessines
GSM 32(0)496659457
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