pamr.confusion {pamr}

A function giving a table of true versus predicted values, from a nearest shrunken centroid fit.

Description

A function giving a table of true versus predicted values, from a nearest shrunken centroid fit.

Usage

pamr.confusion(fit, threshold, extra=TRUE)

Arguments

fit

The result of a call to pamr.train or pamr.cv

threshold

The desired threshold value

extra

Should the classwise and overall error rates be returned? Default TRUE

Details

pamr.confusion Gives a cross-tabulation of true versus predicted classes for the fit returned by pamr.train or pamr.cv, at the specified threshold.

Author(s)

Trevor Hastie, Robert Tibshirani, Balasubramanian Narasimhan, and Gilbert Chu

Examples

suppressWarnings(RNGversion("3.5.0"))
set.seed(120)
x <- matrix(rnorm(1000*20),ncol=20)
y <- sample(c(1:4),size=20,replace=TRUE)
mydata <- list(x=x,y=y)
mytrain <-   pamr.train(mydata)
mycv <- pamr.cv(mytrain,mydata)
pamr.confusion(mytrain,  threshold=2)
pamr.confusion(mycv,  threshold=2)