Dhiman -
You don't say what you want the result to be if the
value is in both S1 and S2, but here's an example that
may give you some ideas:
S1 = c('one','two','three')
S2 = c('four','five','six')
test = c('one','two','three','four','five','six','seven')
test %in% S1 + 2 * test %in% S2
[1] 1 1 1 2 2 2 0
- Phil Spector
Statistical Computing Facility
Department of Statistics
UC Berkeley
spec...@stat.berkeley.edu
On Wed, 2 Feb 2011, DHIMAN BHADRA wrote:
Hello everyone,
I am stuck with an apparently simple issue :
i) I have two sets S1 and S2, each containing a large number of integers,
say zip codes.
ii) Now, I just want to test whether a particular zip code belong to S1 or
S2 or neither of them.
iii) If it belongs to S1, the area/region gets a particular label, say 1; if
it belongs to S2, it gets a label 2 and if it doesnot belong to either S1 or
S2, it gets a label 0.
iv) I have to do this for a large number of zip codes as well.
So I was thinking of embedding it into a if else loop but I am stuck on how
to define the "belongs to" in R syntax. Any hint will be much appreciated.
Best regards,
Dhiman Bhadra
WPI, Worcester, MA 01609
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