auc: AUC

In hutils: Miscellaneous R Functions and Aliases

AUC

Description

Returns the area under the curve ("AUC") of a receiver-operating characteristic curve for the given predicted and actual values.

Usage

auc(actual, pred)

Arguments

actual	Logical vector: TRUE for positive class. If not a logical vector, the result is interpreted as one if safe to do so, viz. if actual contains precisely two unique values and is either a numeric vector, an ordered factor, or the unique values are FALSE and TRUE (case-insensitively). Anything else is an error.
pred	Numeric (double) vector the same length as actual giving the predicted probability of TRUE. Must be a numeric vector the same length as actual.

Author(s)

Copyright (c) 2012, Ben Hamner Author: Ben Hamner ([e-mail]) All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Source

Source code based on Metrics::auc from Ben Hamner and Michael Frasco and Erin LeDell from the Metrics package.

hutils documentation built on April 13, 2022, 5:23 p.m.