CODE EXAMPLE FOR R

del row matrix r

> cbind(c(1,2,3),c(4,5,6))
[,1] [,2]
[1,]    1    4
[2,]    2    5
[3,]    3    6
> rbind(c(1,2,3),c(4,5,6))
[,1] [,2] [,3]
[1,]    1    2    3
[2,]    4    5    6