Thanks all for you help.
Anjan

2010/10/12 Łukasz Ręcławowicz <lukasz.reclawowicz@gmail.com>

> Or just:
>
> id<-seq(1,45e3,1)
> compare<-data.frame(id,a,b)
> differences<-compare$id[a!=b]
>
> --
> Miłego dnia
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
===================================
anjan purkayastha, phd.
research associate
fas center for systems biology,
harvard university
52 oxford street
cambridge ma 02138
phone-703.740.6939
===================================

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