Perform Operations over Margins of an Array or Matrix in R Programming - apply() Function

apply() function in R Language is used to perform mathematical operations across elements of an array or a matrix.

Syntax: apply(x, margin, func) Parameters: x: Array or matrix margin: dimension on which operation is to be applied func: operation to be applied

Example 1: Output:

 [, 1] [, 2] [, 3]
[1, ] 1 4 7
[2, ] 2 5 8
[3, ] 3 6 9
[1] 12 15 18
[1] 6 15 24

Example 2: Output:

 [, 1] [, 2] [, 3]
[1, ] 1 4 7
[2, ] 2 5 8
[3, ] 3 6 9
[1] 28 80 162
[1] 6 120 504