[R] Recoding numeric value

[Giggles]

Thanks so much! I thought R places NA for missing values. I'll have to
read up on it more. Thanks again!

On May 18, 2:23 pm, Marc Schwartz <marc_schwa... at me.com> wrote:
> On May 18, 2012, at 2:26 PM, Giggles wrote:
>
> > I am a newbie and can't figure out how to recode a numeric value. In
> > my data (pharm311), I have a column called "explain" and I need to
> > find all the 6's and change it to NA (blank). Could someone help?
>
> > I'm sorry if this is too basic, I started messing with R this week and
> > got stuck with this problem since yesterday...
>
> > Thanks in advance!
>
> The easiest and canonical way would be:
>
>   is.na(pharma311$explain) <- pharma311$explain == 6
>
> See ?is.na for more information.
>
> Just to be picky, an NA value is not the same as blank. That is NA != "". R has specific behavior in dealing with NA values.
>
> Regards,
>
> Marc Schwartz
>
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