[R] tapply and functions with more than one objects

Hello, How i can use a costum function in tapply which has more than one variable? I mean sum(x) only needs one object but what when i have a function function(x,y) with more, how i indicate where are the other variables to use?7 I hope someone can help me. Thank you!! Best regards, Dominic

Re: [R] tapply and functions with more than one objects

On Jan 22, 2013, at 2:24 PM, Dominic Roye wrote: Hello, How i can use a costum function in tapply which has more than one variable? I mean sum(x) only needs one object but what when i have a function function(x,y) with more, how i indicate where are the other variables to use?7 You can