AIC.cal: Akaike's An Information Criterion for calibration models

In quantchem: Quantitative chemical analysis: calibration and evaluation of results

Description

This function computes a table of AIC values for given object inheriting from class 'cal' ('lmcal' and 'nlscal').

Usage

## S3 method for class 'cal'
AIC(object, ..., k = 2)

Arguments

object	a fitted calibration model of class 'lmcal' or 'nlscal'
...	additional arguments (ignored)
k	the k parameter, for more information see AIC

Value

A matrix with AIC values for each fitted model.

Note

The AIC values should not be directly compared, when models differ in response (for example log-log transformed and fitted with no transformation.

Author(s)

Lukasz Komsta

See Also

lmcal, nlscal

Examples

data(ibuprofen)
attach(ibuprofen)
fit = lmcal(conc,area)
AIC(fit)
fit = nlscal(conc,area)
AIC(fit)

quantchem documentation built on May 30, 2017, 5:28 a.m.