Map indices

This function maps indices from an input vector to corresponding sequences of grouped indices. Each element from the input specifies a group to be mapped from the sequence, determined by the grouping size n.

Usage

map_indices(indices, n)

Arguments

indices

[integer()]
An index vector, where each element specifies a group to be mapped from the sequence.

n

[integer]
The size of each group of consecutive indices.

Value

An integer vector, containing the mapped indices according to the specified group size.

Details

This function is useful when working with indices arranged in fixed-size groups, where each group can be referenced by a single index. For example, if indices are structured in chunks of 3, calling this function with n = 3 will map the corresponding groups of 3 consecutive indices for the given input indices, see the examples.

See also

Other vector helpers: check_numeric_vector(), check_probability_vector(), chunk_vector(), equidistant_vectors(), insert_vector_entry(), match_numerics(), permutations(), split_vector_at(), subsets(), vector_occurrence()

Examples

# Example: Map indices based on groups of 3
map_indices(c(1, 3, 5), 3)
#> [1]  1  2  3  7  8  9 13 14 15