R: alternative to index an array

slice {arrayhelpers} | R Documentation

## alternative to index an array

### Description

`slice` is an alternative interface to `[` (extract). Dimensions to index must be given by name, i for the first, j for the second and so on.

### Usage

    slice(a, ..., drop = TRUE)

    slice (a, ...) <- value

### Arguments

`a` | vector, matrix, or array
`...` | indexing instructions. The names of the arguments specify the dimension (i = 1st, j = 2nd, ...). The indexing expressions are the same as for `[`
`drop` | see `[`
`value` | the values to assign

### Value

array

### Author(s)

Claudia Beleites

### Examples

    slice (arrayhelpers:::a, j = 3 : 2)
    tmp <- arrayhelpers:::a
    slice (tmp, j = 2 : 3) <- 0
    tmp

[Package arrayhelpers version 1.0-20160527 Index]