getCVfolds: Get indices of observations assigned to each fold for...

In Mengbo-Li/brainClass: Transcriptional Data Guided fMRI Network Classification

Get indices of observations assigned to each fold for repeated k-fold cross-validation

Description

The 'getCVfolds' function splits n observations into k groups in s different ways to be used for repeated k-fold cross-validations over s repeats. This function is designed for cases where the the response variable is binary.

Usage

getCVfolds(y, k = 10, repeats = 50, type = "random")

Arguments

y	A binary vector of length n.
k	An integer giving the number of groups into which n observations need to be split. The default is 10.
repeats	Number of repeats. Default is 50.
type	A character string to specify the type of folds to be obtained. See cvTools::cvFolds for more. The default is "random".

Value

A list object of data frames, each consisting of two columns, where column 'k' gives the fold for each permuted observation; column 'Ind' gives the index of each observation. Each data frame element of the returned list should be used in a different repeat of k-fold cross-validation.

Examples

## NOT RUN
# getCVfolds(sample(c(0, 1), size = 100, replace = T))

Mengbo-Li/brainClass documentation built on March 16, 2023, 12:06 p.m.