[R] Large F-value and small P-value

[Sven Garbade]

Peter Dalgaard BSA writes:
 > Sven Garbade <garbade at psy.uni-muenchen.de> writes:
 > 
 > > Hi all,
 > > I computed a Wilks Lambda Test with manova:
 > > 
 > > > df.man <- manova(df.mul ~ 1, na.rm=TRUE)
 > > 
 > > > summary(df.man, intercep=T, test="Wilks")
 > >             Df     Wilks approx F num Df den Df  Pr(>F)  
 > > (Intercept)  1 0.0002824    393.3      9      1 0.03911 *
 > > Residuals    9                                           
 > > ---
 > > Signif. codes:  0 `***' 0.001 `**' 0.01 `*' 0.05 `.' 0.1 ` ' 1 
 > > 
 > > I'm wondering about the very high F value and the comparative low p
 > > value. 
 > 
 > You mean large p, I suppose. 

sorry... 

 > You don't see F tests with 1 DF in the denominator every day.
 > Fisher+v.Belle lists the 95% quantile for F(9,1) as 240.5, so I
 > wouldn't worry...

Yes, in the meantime I've found a F-table in a textbook.

Thanks!
Sven

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._