NregFix {flexmix}R Documentation

Artificial Example for Normal Regression

Description

A simple artificial regression example with 3 latent classes, two independent variables, one concomitant variable and a dependent variable which follows a Gaussian distribution.

Usage

data("NregFix")

Format

A data frame with 200 observations on the following 5 variables.

x1

Independent variable: numeric variable.

x2

Independent variable: a factor with two levels: 0 and 1.

w

Concomitant variable: a factor with two levels: 0 and 1.

y

Dependent variable.

class

Latent class memberships.

Examples

data("NregFix")
library("lattice")
xyplot(y ~ x1 | x2*w, data = NregFix, groups = class)
Model <- FLXMRglmfix(~1, fixed = ~x2, 
                   nested = list(k = c(2,1), formula = c(~x1, ~0)))
fittedModel <- stepFlexmix(y ~ 1, model = Model, data = NregFix, k = 3,
                          concomitant = FLXPmultinom(~ w), nrep=5)
fittedModel
summary(refit(fittedModel))

[Package flexmix version 2.3-6 Index]