slice.index {base} | R Documentation |

## Slice Indexes in an Array

### Description

Returns a matrix of integers indicating the number of their slice in a
given array.

### Usage

slice.index(x, MARGIN)

### Arguments

`x` |
an array. If `x` has no dimension attribute, it is
considered a one-dimensional array. |

`MARGIN` |
an integer giving the dimension number to slice by. |

### Value

An integer array `y`

with dimensions corresponding to those of
`x`

such that all elements of slice number `i`

with respect
to dimension `MARGIN`

have value `i`

.

### See Also

`row`

and `col`

for determining row and column
indexes; in fact, these are special cases of `slice.index`

corresponding to `MARGIN`

equal to 1 and 2, respectively when `x`

is a matrix.

### Examples

x <- array(1 : 24, c(2, 3, 4))
slice.index(x, 2)

[Package

*base* version 2.2.1

Index]