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zeitz
2006 Jan 09
2
decide between polynomial vs ordered factor model (lme)
Dear alltogether,
two lme's, the data are available at:
http://www.anicca-vijja.de/lg/hlm3_nachw.Rdata
explanations of the data:
nachw = post hox knowledge tests over 6 measure time points (= equally
spaced)
zeitn = time points (n = 6)
subgr = small learning groups (n = 28)
gru = 4 different groups = treatment factor
levels: time (=zeitn) (n=6) within subject (n=4) within smallgroups
(=gru) (n = 28), i.e. n = 4 * 28 = 112 persons and 112 * 6 = 672 data points
library(nlme)
fitlme7 <- lme(nachw ~ I(zeit...