[R] Simple question, I think

David Kaplan dkaplan at education.wisc.edu
Thu Oct 22 18:37:35 CEST 2009


I am recoding a dummy variable (coded 1,0) so that 0 = 2.  I am using 
the line

sciach$dummyba[sciach$ba==0] <- 2

I notice that it creates a new column dummyba, with 0 coded as 2 but 
with 1's now coded as NA.  Is there a simple way around this in the line 
I am using, or do I need to have an additional line

sciach$dummyba[sciach$ba==1] <- 1

Thanks in advance.


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