[R] Ifelse statement on a factor level data frame

[Patrick Burns]

I believe you are in Circle 8.2.7 of
The R Inferno.

http://www.burns-stat.com/documents/books/the-r-inferno/

Pat

On 28/09/2014 05:49, Kate Ignatius wrote:
> Quick question:
>
> I am running the following code on some variables that are factors:
>
> dbpmn$IID1new <- ifelse(as.character(dbpmn[,2]) ==
> as.character(dbpmn[,(21)]), dbpmn[,20], '')
>
> Instead of returning some value it gives me this:
>
> c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1))
>
> Playing around with the code, gives me some kind of variation to it.
> Is there some way to get me what I want.  The variable that its
> suppose to give back is a bunch of sampleIDs.
>
> Thanks!
>
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