Rosario,
 The summary function will compute the f-statistic, from which you can 
compute the attained p-value. Here's a snippet that shows the f-stat.

summary(lm(Y ~ X))$fstatistic
   value    numdf    dendf 
34.23125  1.00000  8.00000 

Dave



From:
Rosario Garcia Gil <M.Rosario.Garcia@genfys.slu.se>
To:
r-help <r-help@r-project.org>
Date:
11/29/2010 09:30 AM
Subject:
[R] extracting P values from lm model
Sent by:
r-help-bounces@r-project.org



Hello

I am trying to get out of an lm model the fstatistics, however after I run 
the model I write 
> names(Model)

and the fstatistic does not appear only these.

names(Model)
 [1] "coefficients"  "residuals"     "effects"       "rank" 
"fitted.values"
 [6] "assign"        "qr"            "df.residual"   "xlevels" "call"  
[11] "terms"         "model" 

How could I extract the P values? I have run a cbind of 1800 response 
variables so is not easy to do it by hand.

Thanks in advance.
Rosario
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