Re: [R] help need on working in subset within a dataframe

Thank you, Ista. It helps. Best Regards Umesh R _ From: istaz...@gmail.com [mailto:istaz...@gmail.com] On Behalf Of Ista Zahn Sent: Tuesday, March 22, 2011 8:58 AM To: Umesh Rosyara Cc: R mailing list Subject: Re: [R] help need on working in subset within a dataframe Hi

Re: [R] help need on working in subset within a dataframe

Hi Umesh, I use the plyr package for this sort of thing: library(plyr) daply(dataframe, .(ped), myfun) Best, Ista On Tue, Mar 22, 2011 at 3:48 AM, Umesh Rosyara wrote: > Dear R-experts > > Execuse me for an easy question, but I need help, sorry for that. > > >From days I have been working with a

[R] help need on working in subset within a dataframe

Dear R-experts Execuse me for an easy question, but I need help, sorry for that. >From days I have been working with a large dataset, where operations are needed within a component of dataset. Here is my question: I have big dataset where x1:.x1000 or so. What I need to do is to work on 4