R help - Nov 2012 - Prediction problem.

Dear friends from the R-community,

I am Guy Roger and live in Germany. I am student and user of R. I wanted to do
some prediction after a linear regression fitting but could´nt because of the
following message:
> yx<-predict(lm(y~x4+x5),newdata=data.frame(X4,X5))
Warnmeldung:
In predict.lm(lm(y ~ x4 + x5), newdata = data.frame(X4, X5)) :
Vorhersage durch Fit ohne vollen Rang mag täuschen



For your help I thank you in advance.

Friendly greetings

Djipie,bokaha

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On Nov 10, 2012, at 7:56 AM, bokaha guy wrote:
> Dear friends from the R-community,
> 
> I am Guy Roger and live in Germany. I am student and user of R. I wanted to
do some prediction after a linear regression fitting but could?nt because of the
following message:
> 
>> yx<-predict(lm(y~x4+x5),newdata=data.frame(X4,X5))
> Warnmeldung:
> In predict.lm(lm(y ~ x4 + x5), newdata = data.frame(X4, X5)) :
> Vorhersage durch Fit ohne vollen Rang mag t?uschen
I cannot read the error message, but I will bet dollars to donuts that it has to
do with the fact that ....  x4 ist nicht X4

-- 

David Winsemius, MD
Alameda, CA, USA