I am new to R. I need to make a matrix in R whose 1st column contains the numbers 6,7,8,9 and whose 2nd column contains the squares of the numbers in the 1st column.

CodePudding user response：

There are many possible solutions to your problem. One way is to use cbind(), e.g.

mat <- matrix(6:9)
mat
#>      [,1]
#> [1,]    6
#> [2,]    7
#> [3,]    8
#> [4,]    9
mat2 <- cbind(mat, mat^2)
mat2
#>      [,1] [,2]
#> [1,]    6   36
#> [2,]    7   49
#> [3,]    8   64
#> [4,]    9   81