[R] extract data from lm object and then use again?

Thilo Kellermann tkellermann at ukaachen.de
Fri Sep 22 17:04:56 CEST 2006


the data of the model fit is stored in lm$model and should work....

Good luck,

On Friday 22 September 2006 16:45, Mike Wolfgang wrote:
> Hi list,
> I want to write a general function so that it would take an lm object,
> extract its data element, then use the data at another R function (eg,
> glm). I searched R-help list, and found this would do the trick of the
> first part: a.lm$call$data
> this would return a name object but could not be recognized as a
> data.frameby glm. I also tried
> call(as.character(a.lm$call$data))
> or
> eval(call(as.character(a.lm$call$data)))
> neither works.
> By eval(call(...)), it acts as evaluating of a function, but what I want is
> just a data frame object which could be inserted into glm function. Anyone
> could help? Thanks,
> Mike
> 	[[alternative HTML version deleted]]
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Thilo Kellermann
Department of Psychiatry und Psychotherapy
RWTH Aachen University
Pauwelstr. 30
52074 Aachen
Tel.: +49 (0)241 / 8089977
Fax.: +49 (0)241 / 8082401
E-Mail: tkellermann at ukaachen.de

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