computeStats {cvwrapr}

Compute CV statistics

Description

Use the returned output from 'computeRawError()' to compute CV statistics.

Usage

computeStats(cvstuff, foldid, lambda, grouped)

Arguments

cvstuff

Output from a call to 'computeRawError()'.

foldid

Vector of values identifying which fold each observation is in.

lambda

Lambda values associated with the errors in 'cvstuff'.

grouped

Experimental argument; see 'kfoldcv()' documentation for details.

Value

A list with the following elements:

lambda

The values of lambda used in the fits.

cvm

The mean cross-validated error: a vector of length 'length(lambda)'.

cvsd

Estimate of standard error of 'cvm'.

cvup

Upper curve = 'cvm + cvsd'.

cvlo

Lower curve = 'cvm - cvsd'.