Hi there,

during last weeks I deepened my problem with the aid of your suggestions,
and I just infered that lme and lmer functions can't work out a
repeated-measures ANOVA. They are designed for nested levels, but not for
repeated-measures.

However I found a great explanatory page on the web which shows in detail
how to combine Anova and lme functions in order to get the result:

http://yatani.jp/HCIstats/ANOVA

I report this to you in case you are interested with.

Regards,
Vanni

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