John Fox wrote:
Dear Uwe,
-----Original Message-----
From: Uwe Ligges [mailto:[EMAIL PROTECTED] Sent: Thursday, September 23, 2004 11:37 AM
To: John Fox
Cc: [EMAIL PROTECTED]
Subject: Re: [R] Issue with predict() for glm models
. . .
John,
note that I used glm(y ~ .) (the dot!),
because the names are automatically chosen to be X.1 and X.2, hence you cannot use "X" in the formula in this case ...
Best, Uwe
OK -- I see. I did notice that you used . in the formula but didn't make the proper connection!
Sorry, my first reply was too short and imprecisely. Thank you to help clarifying things.
Uwe
Thanks, John
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