12/01/23 12:02:36.25
>>349
いや、cbind()かmatrix()かは好みの問題だと思うぞ。
> matrix(c(x,x[,1]+x[,2],x[,1]*x[,2]),ncol=5)
[,1] [,2] [,3] [,4] [,5]
[1,] 1 11 21 12 11
[2,] 2 12 22 14 24
[3,] 3 13 23 16 39
[4,] 4 14 24 18 56
[5,] 5 15 25 20 75
[6,] 6 16 26 22 96
[7,] 7 17 27 24 119
[8,] 8 18 28 26 144
[9,] 9 19 29 28 171
[10,] 10 20 30 30 200