confint2 {nlrwr}R Documentation

Confidence intervals in non-linear regression

Description

Produces confidence intervals for the parameters in non-linear regression model fit. The intervals can either be based large sample results or on profiling.

Usage

  confint2(object, parm, level = 0.95, method = c("asymptotic", "profile"), ...)

Arguments

object object of class nls.
parm a vector character strings with names of the parameter for which to calculate confidence intervals (by default all parameters).
level the confidence level required.
method method to be used: "asympotic" for large sample and "profile" for profiling approach.
... additional argument(s) to pass on the method doing the profiling.

Details

The profiling used is the method confint.nls.

Value

A matrix with columns giving lower and upper confidence limits for each parameter.

Author(s)

Christian Ritz

Examples


L.minor.m1 <- nls(rate ~ Vm*conc/(K+conc), data = L.minor, start = list(K=20, Vm=120))

confint2(L.minor.m1)

confint2(L.minor.m1, "K")


[Package nlrwr version 1.0-6 Index]