R version 4.4.0 beta (2024-04-14 r86421 ucrt) -- "Puppy Cup" Copyright (C) 2024 The R Foundation for Statistical Computing Platform: x86_64-w64-mingw32/x64 R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. > ## test for models containing data-defined bases > > ## ?makepredictcall > ## ?model.frame > ## ???? > > data(sleepstudy,package="lme4") > library(splines) > > ## lm0 <- lm(Reaction~ns(Days,2),sleepstudy) > ## attr(terms(lm0),"predvars") > ## library(nlme) > ## lme1 <- lme(Reaction~ns(Days,2),random=~1|Subject,sleepstudy) > ## attr(terms(lme1),"predvars") ## no! > ## attr(lme1$terms,"predvars") ## yes > ## detach("package:nlme") > > library(lme4) Loading required package: Matrix > fm1 <- lmer(Reaction ~ ns(Days,2) + (1|Subject), sleepstudy) > fm2 <- lmer(Reaction ~ poly(Days,2) + (1|Subject), sleepstudy) > fm3 <- lmer(Reaction ~ poly(Days,2,raw=TRUE) + (1|Subject), sleepstudy) > > newdat0 <- data.frame(Days = unique(sleepstudy$Days)) > newdat <- data.frame(Days = 5:12) > tmpf <- function(fit) { + with(sleepstudy, { + plot (Reaction~Days, xlim=c(0,12)) + points(Days, predict(fit), col=2) + }) + lines(newdat0$ Days, predict(fit,ReForm=NA,newdata=newdat0), col=4) + lines(newdat $ Days, predict(fit,ReForm=NA,newdata=newdat ), col=5) + } > > stopifnot(all.equal(predict(fm2,newdat,ReForm=NA), + predict(fm3,newdat,ReForm=NA))) Warning messages: 1: 'ReForm' is deprecated; use 're.form' instead 2: 'ReForm' is deprecated; use 're.form' instead > > ## pictures > tmpf(fm1) Warning messages: 1: 'ReForm' is deprecated; use 're.form' instead 2: 'ReForm' is deprecated; use 're.form' instead > tmpf(fm2) Warning messages: 1: 'ReForm' is deprecated; use 're.form' instead 2: 'ReForm' is deprecated; use 're.form' instead > tmpf(fm3) Warning messages: 1: 'ReForm' is deprecated; use 're.form' instead 2: 'ReForm' is deprecated; use 're.form' instead > > ## test for GLMMs > set.seed(101) > d <- data.frame(y=rbinom(10,size=1,prob=0.5), + x=1:10, + f=factor(rep(1:5,each=2))) > gm1 <- glmer(y ~ poly(x,2) + (1|f), d, family=binomial) > gm2 <- glmer(y ~ poly(x,2,raw=TRUE) + (1|f), d, family=binomial) > > newdat <- data.frame(x=c(1,4,6)) > stopifnot(all.equal(predict(gm1,newdat,ReForm=NA), + predict(gm2,newdat,ReForm=NA),tolerance=3e-6)) Warning messages: 1: 'ReForm' is deprecated; use 're.form' instead 2: 'ReForm' is deprecated; use 're.form' instead > > > proc.time() user system elapsed 1.25 0.14 1.37