Fit a Two-factor Box-Tidwell Nonlinear Response Surface

Usage

rs3(y,x1,x2,x3power=c(1,1,1),weight=rep(1,length(y)),family=normal)

Arguments

y Response variable
x1 First covariate
x2 Second covariate
x3 Third covariate
power Initial estimates of the three power transformations
weight Weight vector
family glm family

Description

rs3 fits a three-covariate power-transformed response surface by iterating the function, glm.

Value

A list of class, rs, is returned containing the model and the power estimates.

See Also

lm, glm, gnlr, gnlr3, fmr, rs2.

Examples

rs3(native,area,elevation,santacruz,p=c(-1,0.8,1),fam=poisson,weight=wt)


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