quantchem (version 0.12-1)

confint.cal: Confidence intervals for calibration curve parameters

Description

Computes confidence intervals for parameters in a calibration fitted model.

Usage

confint.cal(object, parm, level = 0.95, sort.models = FALSE, ...)

Arguments

object

an object of class 'lmcal' or 'nlscal' (inheriting from 'cal')

parm

ignored in this case

level

confidence level of intervals

sort.models

should the intervals be sorted by models, or variable names

...

additional arguments (ignored)

Value

• A matrix containing upper and lower bounds for confidence interval is returned.

See Also

lmcal, nlscal

Examples

data(nitrate)
attach(nitrate)
fit = lmcal(conc,area)
confint(fit)