CVerrorknn: k-Fold Cross Validation Error Rate for KNN

In smallstuff: Dr. Small's Functions

k-Fold Cross Validation Error Rate for KNN

Description

Given a dataset with predictors and a vector with responses, a number of neighbors K, and a number of folds k, the k-fold CV error rate for KNN is calculated.

Usage

CVerrorknn(pred, resp, K = 1, k = nrow(pred))

Arguments

pred	A dataset with predictors
resp	A vector with responses
K	The number of neighborhoods to consider when performing KNN
k	The number of folds

Value

The k-fold CV error rate if k is entered, otherwise the LOOCV error rate.

Examples

mtcars$am=as.factor(mtcars$am)
CVerrorknn(mtcars[,c("mpg","hp")],mtcars$am)

smallstuff documentation built on June 2, 2022, 5:06 p.m.