conf.mat: Confusion Matrix

In liver: "Eating the Liver of Data Science"

Confusion Matrix

Description

Create a Confusion Matrix.

Usage

conf.mat( pred, actual, cutoff = NULL, reference = NULL, 
          proportion = FALSE, dnn = c( "Predict", "Actual" ), ... )

Arguments

pred	a vector of estimated values.
actual	a vector of actual values.
cutoff	cutoff value for the case that pred is vector of probabilites.
reference	a factor of classes to be used as the true results.
proportion	Logical: FALSE (default) for a confusion matrix with number of cases. TRUE, for a confusion matrix with the proportion of cases.
dnn	the names to be given to the dimensions in the result (the dimnames names).
...	options to be passed to table.

Value

the results of table on pred and actual.

Author(s)

Reza Mohammadi [e-mail] and Kevin Burke [e-mail]

See Also

conf.mat.plot, accuracy

Examples

pred   = c( "no", "yes", "yes", "no", "no", "yes", "no", "no" )
actual = c( "yes", "no", "yes", "no", "no", "no", "yes", "yes" )

conf.mat( pred, actual )
conf.mat( pred, actual, proportion = TRUE )

liver documentation built on Nov. 2, 2023, 5:29 p.m.