Basically, I used the without intercept to get an estimate for each of my
factor levels instead of using a reference class. So I use a kind of hidden
intercept.
I should have noticed that the behavior was documented in ?summary.lm.
Sorry for the inconvenience.
Lieven
Duncan Murdoch-2 wrote:
This is deliberate and as documented in ?summary.lm. It is not a bug.
-thomas
On Fri, 14 Dec 2007 [EMAIL PROTECTED] wrote:
> Full_Name: lieven clement
> Version: R version 2.4.0 Patched (2006-11-25 r39997)
> OS: i486-pc-linux-gnu
> Submission from: (NULL) (157.193.193.180)
>
>
> summary.l
On 12/14/2007 8:10 AM, [EMAIL PROTECTED] wrote:
> Full_Name: lieven clement
> Version: R version 2.4.0 Patched (2006-11-25 r39997)
> OS: i486-pc-linux-gnu
> Submission from: (NULL) (157.193.193.180)
>
>
> summary.lm() does not calculate R² accurately for models without intercepts
> if
> one of
Full_Name: lieven clement
Version: R version 2.4.0 Patched (2006-11-25 r39997)
OS: i486-pc-linux-gnu
Submission from: (NULL) (157.193.193.180)
summary.lm() does not calculate R² accurately for models without intercepts if
one of the predictor variables is a factor.
In order to avoid one of the
