funData (version 1.3-3)

expand.int: Function to expand integers to a grid of indices

Description

This function takes an arbitrary number \(K\) of integer values \(n_1,\ldots, n_K\) and creates a data frame with all combinations from 1:\(n_k\), where the first column (taking values from 1 to \(n_1\)) varies slowest and the last column (())taking values from 1 to \(n_K\)) varies fastest. Internally, this function depends on expand.grid

Usage

expand.int(...)

Arguments

...

An arbitrary number of integer values.

Value

A dataframe with the same number of columns as integers supplied and containing all combinations of indices from 1 to the given integers. If no number is supplied, the function returns NULL.

Examples

# NOT RUN {
# For two integers
funData:::expand.int(2,5) # first column varies slowest

# For three integers
funData:::expand.int(2,3,4)
# }