R : cbind and rbind

cbind()

cbind() function combines vector, matrix or data frame by columns.

Syntax

cbind(x1,x2,...)

> matrix1 <- matrix(1:6, nrow=3, ncol=2)
> matrix1
     [,1] [,2]
[1,]    1    4
[2,]    2    5
[3,]    3    6
> 
> matrix2 <- matrix(7:12, nrow=3, ncol=2)
> matrix2
     [,1] [,2]
[1,]    7   10
[2,]    8   11
[3,]    9   12
> 
> cbind(matrix1, matrix2)
     [,1] [,2] [,3] [,4]
[1,]    1    4    7   10
[2,]    2    5    8   11
[3,]    3    6    9   12

rbind

rbind() function combines vector, matrix or data frame by rows.

Syntax

rbind(x1,x2,...)

> rbind(matrix1, matrix2)
     [,1] [,2]
[1,]    1    4
[2,]    2    5
[3,]    3    6
[4,]    7   10
[5,]    8   11
[6,]    9   12

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