Do:
length(variablename)
where variablename is in {mats,time,quar}, i.e. do it for each of them. This
will tell you. Btw: I think you might wanna pickup an introductory manual.
Btw. Peter Dalgaard pointed to the same issue regarding the plot.
Daniel
-------------------------
cuncta stricte discussurus
-------------------------
-----Ursprüngliche Nachricht-----
Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im
Auftrag von uep
Gesendet: Saturday, November 08, 2008 5:34 PM
An: r-help@r-project.org
Betreff: Re: [R] Plotting Standard Regression Fit-Am I wrong or a bug?
However, now a linear regression with a factor for quarterly effect doesn't
want to work for me:
t2<-lm(mats~time+quar)
and I get an error message:
"Error in model.frame.default(formula = mats ~ time + quar,
drop.unused.levels = TRUE) :
variable lengths differ (found for 'quar')"
Which variable has wrong length?
Looking forward to a response
Ula
Unfortunately for me, this example works and does plot fitted line and
predicted points. I really don't understand why I can't make the same
commands work when trying with my real life data.
Ula
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