[R] First time r user

[Rainer Schuermann]

It would be helpful if

- you give us some sample data:
   dput( head( myData ) )

- tell us what kind of function you want to apply, or
   how the result looks like that you want to achieve

- show us what you have done so far,
   and where you are stuck




On Saturday 17 August 2013 19:33:08 Dylan Doyle wrote:
> 
> Hello R users,
> 
> 
> I have recently begun a project to analyze a large data set of approximately 1.5 million rows it also has 9 columns. My objective consists of locating particular subsets within this data ie. take all rows with the same column 9 and perform a function on that subset. It was suggested to me that i use the ddply() function from the Pylr package. Any advice would be greatly appreciated 
> 
> 
> Thanks much,
> 
> Dylan
> 
> 
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