# multComb: Combinations of the first n integers in k groups In NSM3: Functions and Datasets to Accompany Hollander, Wolfe, and Chicken - Nonparametric Statistical Methods, Third Edition

 multComb R Documentation

## Combinations of the first n integers in k groups

### Description

This is a function, used for generating the permutations used for the Exact distribution of many of the statistical procedures in Hollander, Wolfe, Chicken - Nonparametric Statistical Methods Third Edition, to generate possible combinations of the first n=n1+n2+...+nk integers within k groups.

### Usage

``````multComb(n.vec)
``````

### Arguments

 `n.vec` Contains the group sizes n1,n2,...,nk

### Details

The computations involved get very time consuming very quickly, so be careful not to use it for too many large groups.

### Value

Returns a matrix of n!/(n1!*n2!*...*nk!) rows, where each row represents one possible combination.

Grant Schneider

### Examples

``````##What are the ways that we can group 1,2,3,4,5 into groups of 2, 2, and 1?
multComb(c(2,2,1))

##Another example, with four groups
multComb(c(2,2,3,2))
``````

NSM3 documentation built on Sept. 8, 2023, 5:52 p.m.