Sure, here's an explanation with examples on how to delete an element from an array in R:
An array is a collection of data values of the same data type, stored in a matrix-like format. An array can have one or multiple dimensions.
To delete an element from an array in R, we use the "-" sign to specify the index of the element that we want to delete.
Here's an example:
Let's say we have an array of integers of size 3x3:
my_array <- array(data = c(1, 2, 3, 4, 5, 6, 7, 8, 9), dim = c(3, 3))
This will create an array with the values:
, , 1
[,1] [,2] [,3]
[1,] 1 4 7
[2,] 2 5 8
[3,] 3 6 9
If we want to delete the element in the first row and first column, we can use the "-" sign to specify the indices we want to keep:
new_array <- my_array[-1, -1]
This will create a new array without the first row and first column:
, , 1
[,1] [,2]
[1,] 5 8
[2,] 6 9
As you can see, the first row and column of the original array has been removed.
I hope this helps!