On Sep 16, 2011, at 11:49 AM, Ben Ganzfried wrote:
> Thanks David. That works perfectly! Although, I'm still not sure I
> understand entirely why the input file says the character value
> "null" and yet, it actually is NA...
Unless you show us the file as it would appear in a text editor, and
how you brought it into R, and then processed it, we will not have
any chance of commenting sensibly.
--
David.
>
> On Fri, Sep 16, 2011 at 11:35 AM, David Winsemius <dwinsem...@comcast.net
> > wrote:
>
> On Sep 16, 2011, at 11:08 AM, David Winsemius wrote:
>
>
> On Sep 16, 2011, at 10:36 AM, Ben Ganzfried wrote:
>
> Hi guys,
>
> snipped
>
>
> Second, I changed the first line of my code to:
> tmp <-
> ifelse(uncurated
> $days_to_tumor_recurrence==NA,"norecurrence","recurrence")
>
> I do not know why your original did not succeed but this code should
> have been written:
>
> tmp <-
> ifelse(is,na(uncurated
> $days_to_tumor_recurrence),"norecurrence","recurrence")
> ^.^
>
> Except that should have been a period.
>
> --
>
> David Winsemius, MD
> West Hartford, CT
>
>
David Winsemius, MD
West Hartford, CT
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