[R] Repeated-measures: aov(), lme() and lmer()

[Francisco Torreira]

Hello,

Can anyone confirm if these 3 function calls are equivalent? I would
like to test for treatment effects in a repeated-measures design. The
design is balanced:

# 1:

aov(y~subject+treatment)

# 2:

aov(y~treatment+Error(subject))

# 3:

lme(y~treatment, random= ~1|subject)

# 4:

lmer(y~treatment+(1|subject))

######

Thanks in advance,

-- 
Francisco Torreira
PhD Candidate in Romance Linguistics
University of Illinois at Urbana-Champaign

https://netfiles.uiuc.edu/ftorrei2/www/index.html
tel: (+1) 217 - 778 8510