confusion {mda}R Documentation

Confusion Matrices

Description

Compute the confusion matrix between two factors, or for an fda or mda object.

Usage

confusion(predict, true)

Arguments

predict the predicted factor, or an fda or mda model
true the true factor, or else (in the case where predict is a model object) a data frame (list) containing the test data.

Value

Essentially table(predict, true), but with some useful attribute(s).

See Also

fda, predict.fda

Examples

data(iris)
irisfit <- fda(Species ~ ., data = iris)
confusion(predict(irisfit, iris), iris$Species)
##            Setosa Versicolor Virginica 
##     Setosa     50          0         0
## Versicolor      0         48         1
##  Virginica      0          2        49
## attr(, "error"):
## [1] 0.02