[R] return()

[christian]

Thanks, that's it and one big step for me to understand loops and functions in R
Christian

>On Wed, 27 Feb 2002, christian schulz wrote:
>
>> Hi,
>> i get only one value, but expect ncol values  - what's wrong ?
>
>You only compute one value for y and then return it. The assignment to y
>is outside the loop, but in any case it would overwrite the previous value
>
>> test <- function(){
>>        for (i in 1:ncol(configData))
>>        x <- subset(configData, Q71 == 1 & configData[,i] ==1 , select =
>> configData[,i])
>>        y <- (dim(x)[1]/dim(configData)[1])*100
>>        return(y) }
>
>My guess is that you mean something like
> test <- function(){
>	y<-numeric(ncol(configData))
>        for (i in 1:ncol(configData)){
>          x <- subset(configData, Q71 == 1 & configData[,i] ==1 , select = configData[,i])
>          y[i] <- (dim(x)[1]/dim(configData)[1])*100
>        }
>        return(y) }
>
>
>
>     -thomas
>
>Thomas Lumley			Asst. Professor, Biostatistics
>tlumley at u.washington.edu	University of Washington, Seattle
>
>



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