[R] tapply with multiple arguments that are not part of the same data frame

Hi all, I would like to invoke a function that takes multiple arguments (some of which are specified columns in the data frame, and others that are independent of the data frame) on split parts of a data frame, how do I do this? For example, let's say I have a data frame fitness_data name

Re: [R] tapply with multiple arguments that are not part of the same data frame

I just realized my earlier post of my question below was not in Plain Text mode, hence the repeat post...apologies! Kavitha On Thu, Oct 22, 2009 at 4:19 PM, Kavitha Venkatesan kavitha.venkate...@gmail.com wrote: Hi all, I would like to invoke a function that takes multiple arguments (some of