# conffig

## Purpose

Display a confusion matrix.

## Synopsis

    conffig(y, t)
    fh = conffig(y, t)

## Description

`conffig(y, t)` displays the confusion matrix and classification performance for the predictions mat{y} compared with the targets `t`. The data is assumed to be in a 1-of-N encoding, unless there is just one column, when it is assumed to be a 2 class problem with a 0-1 encoding. Each row of `y` and `t` corresponds to a single example.

In the confusion matrix, the rows represent the true classes and the columns the predicted classes.

`fh = conffig(y, t)` also returns the figure handle `fh` which can be used, for instance, to delete the figure when it is no longer needed.

## See Also

`confmat`, `demtrain`

Pages: Index

Copyright (c) Ian T Nabney (1996-9)