[S] Select items based on NA

[Kim Elmore <elmore@nssl.noaa.gov>]

        I'm a rather new S-Plus user using S-Plus 4.5 on an NT platform. I
have a data frame that contains NA values in certain columns.  I'd like
select elements from one column (that does not containe NA values) based
on another column being not NA. Is there an S-Plus function to do this?  
If so, what is it?  Thanks!

Kim Elmore
elmore@nssl.noaa.gov

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