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Bert
Sent from my iPhone -- please excuse typos.
On May 4, 2012, at 6:25 AM, "R. Michael Weylandt" <michael.weyla...@gmail.com>
wrote:
> do.call(function(x,y) paste0("A",x,"_","B",y),expand.grid(x = A,y = B))
>
> seems to be a place to start. Robust generalization seems a hair
> tricky -- I'll mull on it.
>
> Michael
>
> On Fri, May 4, 2012 at 9:10 AM, Johannes Radinger <jradin...@gmx.at> wrote:
>> Hi,
>>
>> it is easiest to explain what I want to do by an example:
>>
>> lets assume there are two factors/variables:
>> A <- c(1,2,3)
>> B <- c(1,3,3)
>>
>> Now I would like to generate a list of strings that should look like
>> ("A1_B1","A1_B2","A2_B1","A2_B2"). So actually the string
>> contains all possible combinations of A and B (separated by _). This should
>> be also possible for more variables. Is there simple way
>> to that? I thought about looping over A and B (nested for-loop)
>> but maybe there is a straight foward solution to get such strings.
>>
>> /johannes
>>
>>
>> --
>>
>> Jetzt informieren: http://mobile.1und1.de/?ac=OM.PW.PW003K20328T7073a
>>
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>
> ______________________________________________
> R-help@r-project.org mailing list
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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