pamr.confusion {pamr}R Documentation

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

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)
 

[Package pamr version 1.40.1 Index]