[R] execute array of functions

[Nordlund, Dan (DSHS/RDA)]

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Muhammad Rahiz
> Sent: Tuesday, February 14, 2012 11:03 AM
> To: x.r-help
> Subject: [R] execute array of functions
> 
> Hi all,
> 
> I'm trying to get the min and max of a sequence of number using a loop
> like the folllowing. Can anyone point me to why it doesn't work.
> 
> Thanks.
> 
> type 	<- c("min","max")
> n 	<- 1:10
> for (a in 1:2) 	  {
> print(type[a](n)) }
> 
> 
> --
> Muhammad
> 

I am not sure why you are trying to use this approach in a loop, but you need to use the get() function if you want to do this.

type <- c("min","max")
n <- 1:10
for (a in 1:2) 	  {
  print(get(type[a])(n)) 
}

But, why not use min and max on n directly?


Hope this is helpful,

Dan

Daniel J. Nordlund
Washington State Department of Social and Health Services
Planning, Performance, and Accountability
Research and Data Analysis Division
Olympia, WA 98504-5204