R help - May 2001 - na.exclude equivalent

Is there an R equivalent to the na.action "na.exclude" in S+ for use
in lm()?
My basic problem is that when using resid() to grab the residuals from an lm
object, I would like place holders for the missing values caused by NA's
among
the input variables. na.omit, of course, removes those observations entirely,
so I don't know (without going to the trouble of matching up row.names)
which
residuals line up with which input observations.

Thanks,

Dave Kane 


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On Wed, 30 May 2001, David Kane  <David Kane wrote:
> Is there an R equivalent to the na.action "na.exclude" in S+ for
use in lm()?
There will be in about three  weeks in R 1.3.0
> My basic problem is that when using resid() to grab the residuals from an
lm
> object, I would like place holders for the missing values caused by
NA's among
> the input variables. na.omit, of course, removes those observations
entirely,
> so I don't know (without going to the trouble of matching up row.names)
which
> residuals line up with which input observations.
For now you will  have to match up row names or create a data frame
without missing data.

	-thomas

Thomas Lumley			Asst. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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