r - Obtaining matrix row as matrix -

what shortest way obtain row matrix matrix?

> x<-matrix(1:9,nrow=3,byrow=true) > x      [,1] [,2] [,3] [1,]    1    2    3 [2,]    4    5    6 [3,]    7    8    9 > x[1,] [1] 1 2 3 > is.vector(x[1,]) [1] true 

where i'd get

      [,1] [,2] [,3]  [1,]    1    2    3 

[ takes drop argument controlling whether extracted subset coerced (if possible) lower dimensional object (in case plain vector). ensure subset of matrix matrix, set drop=false, this:

x[1,,drop=false]      [,1] [,2] [,3] [1,]    1    2    3 

(and full set of subsetting rules , arguments, try help("[").)