[R] simplify source code

[jim holtman]

measurements[[colname]]

?'[['



On Thu, Dec 1, 2011 at 8:34 AM, Christof Kluß <ckluss at email.uni-kiel.de> wrote:
> Hi
>
> now I'd like to do
>
> for (colname in c('ColName1','ColName2','ColName3')) {
>    dat <- measurements$colname
>
> But that does not work, though I can write
>
> measurements$"C1" (same as measurements$C1)
> (but different to measurements["C1"]!)
>
> Can you give me a hint?
>
> greetings
> Christof
>
>
>
> Am 26-11-2011 23:30, schrieb Christof Kluß:
>>
>> Hi
>>
>> I would like to shorten
>>
>> mod1 <- nls(ColName2 ~ ColName1, data = table, ...)
>> mod2 <- nls(ColName3 ~ ColName1, data = table, ...)
>> mod3 <- nls(ColName4 ~ ColName1, data = table, ...)
>> ...
>>
>> is there something like
>>
>> cols = c(ColName2,ColName3,ColName4,...)
>>
>> for i in ...
>> mod[i-1] <- nls(ColName[i] ~ ColName1, data = table, ...)
>>
>> I am looking forward to help
>>
>> Christof
>>
>
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-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.