confusion.matrix.positive.predictive.value.simple: Confusion Matrix Measures - Positive Predictive...
In burrm/lolcat: Miscellaneous Useful Functions

View source: R/confusion.matrix.positive.predictive.value.simple.R

confusion.matrix.positive.predictive.value

R Documentation

Confusion Matrix Measures - Positive Predictive Value/Precision

Description

Calculate Positive Predictive Value (also called Precision), defined as TP/(TP+FP), for a given confusion matrix.

Usage

confusion.matrix.positive.predictive.value(confusion.matrix)

confusion.matrix.precision(confusion.matrix)

confusion.matrix.positive.predictive.value.simple(
  true.positive = 0,
  false.positive = 1
)

confusion.matrix.precision.simple(true.positive = 0, false.positive = 1)

Arguments

`confusion.matrix`	Matrix - confusion matrix.
`true.positive`	Scalar - Cases identified as true positive
`false.positive`	Scalar - Cases identified as false positive