R help - Mar 2002 - How calculate Wilks Lamda in a one way repetead measure design?

Hi,

how can I comute Wilks Lambda from a repeated measure design with one
factor (5 levels)? I think the trick is to use manova(), but I can't
figure out how. The data is stored in a data frame like:

  vp trial adiff
1 am   ENC  0.16
2 am   ECR  0.14
3 am   UEA  0.09
4 am   UED  0.14
5 am Blank -0.15
6 ba   ENC  0.14
...

where vp are the subjects, trial is a factor (5 levels) and adiff is the
dependent variable.

Thanks, Sven

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