[R] Reading data from a dataframe
David Winsemius
dwinsemius at comcast.net
Sat Feb 9 18:52:44 CET 2008
Duncan Murdoch <murdoch at stats.uwo.ca> wrote in
news:47ADE367.8020405 at stats.uwo.ca:
> On 09/02/2008 11:38 AM, David Winsemius wrote:
>> "Alexander Ovodenko" <ovodenko at princeton.edu> wrote in
snipped
>>
>> Which creates the model and immediately discards it, because no
>> durable object was given the values:
>>
>>> But when try to get a fitted line, I enter the following:
>>> with(pol572a1, lm( share.gnp)<-lm(incmean~rgnpc))
>>
>> That does not look particular sensible. Assuming that the goal was
>> to create a model object named share.gnp, then try instead:
>>
>> with(pol572a1, share.gnp.mdl <-lm(incmean~rgnpc) )
>
> That won't work: share.gnp.mdl will be created in the local
> environment created by with(), and then discarded. You need to put
> it outside, i.e.
>
> share.gnp.mdl <- with(pol572a1, lm(incmean~rgnpc) )
>
Thank you for the correction. I see that I was committing the same error
I had described above it albeit in a different manner. I do hope he first
saw your earlier post, or that of Onkelinx suggesting the "data= "
approach before following me into a blind alley.
--
David Winsemius
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