[R] Passing values to a function when using apply

[Abhishek Pratap]

Hi Henrique and Erik

I still get a error. See below.

apply(veh_drg_animal1[ ,c("readCount","gene_length")] ,1,  stats,
total=55000000)

Error in FUN(newX[, i], ...) :
  element 1 is empty;
   the part of the args list of '(' being evaluated was:
   (length_gene)


stats<- function(count,length_gene,total) {
 ( count/( total * (length_gene ) ) ) * ( 10^9)
}

Thanks!
-Abhi

On Tue, Apr 27, 2010 at 2:18 PM, Henrique Dallazuanna <wwwhsd at gmail.com> wrote:
> Try this:
>
> apply( veh_drg_animal1[ , c("readCount","gene_length")] ,1,  stats, agr3 =
> your_constant)
>
>
> On Tue, Apr 27, 2010 at 3:10 PM, Abhishek Pratap <abhishek.vit at gmail.com>
> wrote:
>>
>> Hi All
>>
>> Slightly lost on how should I pass values to a function I am calling
>> using apply.
>>
>>
>> apply( veh_drg_animal1[ , c("readCount","gene_length")] ,1,  stats() )
>>
>> here stats is a custom function where I want to pass two parameters
>> from data frame as shown and a third argument which is constant per
>> instance of apply.
>>
>>
>> stats <- function ( arg1,agr2,agr3) {
>> ## computation using three parameters
>> }
>>
>> ______________________________________________
>> R-help at 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.
>
>
>
> --
> Henrique Dallazuanna
> Curitiba-Paraná-Brasil
> 25° 25' 40" S 49° 16' 22" O
>