[R] Correction of degrees of freedom in repeated measure aov

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From: Sven Garbade (garbade@psy.uni-muenchen.de)
Date: Fri 20 Jul 2001 - 02:26:38 EST 

Message-id: <3B570A3E.84D7ED11@psy.uni-muenchen.de>

Hi there,

some statistical programs (e.g. SPSS) calculate a correction of the
degrees of freedom in a repeated measure analysis of variance (see
Greenhouse-Geisser (1958) or Huynh-Feld (1976)) by a factor epsilon.
This factor is used to correct the deg. of freedom to get a corrected
f-test. Is this also possible with R?

Thanks, Sven

P.S.: I read in the lm help page:

        singular.ok logical, defaulting to TRUE. FALSE is not yet
implemented.

but couldn't figure out if this is related to my question.
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