R: Combining Matrix

combMat {mclust} | R Documentation

## Combining Matrix

### Description

Create a combining matrix

### Usage

    combMat(K, l1, l2)

### Arguments

`K` | The original number of classes: the matrix will define a combining from K to (K-1) classes.
`l1` | Label of one of the two classes to be combined.
`l2` | Label of the other class to be combined.

### Value

If `z` is a vector (length K) whose kth entry is the probability that an observation belongs to the kth class in a K-classes classification, then `combiM %*% z` is the vector (length K-1) whose kth entry is the probability that the observation belongs to the kth class in the K-1-classes classification obtained by merging classes `l1` and `l2` in the initial classification.

### Author(s)

J.-P. Baudry, A. E. Raftery, L. Scrucca

### See Also

`clustCombi`, `combiPlot`

[Package mclust version 5.4.9 Index]