[R] Assigning several lists to variables whose names are contained in other variables
Wolfgang Grond
wgrond @end|ng |rom wgrond@de
Fri Apr 9 17:12:18 CEST 2021
Folks,
first of all - thanks a lot for your hints!
I will try each again and think about, why I get error messages.
But to resume: if I understand you right:
there is no way to do something like this:
$name = $result?
Regards
Wolfgang
Am 9. April 2021 15:43:27 MESZ schrieb Rui Barradas <ruipbarradas using sapo.pt>:
>Hello,
>
>my_function seems to be a function you have defined somewhere in your
>code.
>In your original post you mention it 3 times, this is the first one:
>
>
>subnet_MYSUBNET <- my_function(MYSUBNET)
>
>
>So Ivan's and Greg's code should work, they use a function you haven't
>posted but is assumed to exist.
>
>Note: if you are more comfortable with for loops than with *apply, I
>would rewrite Ivan's for loop solution as
>
>
>results <- vector("list", length = nrow(datatable))
>for(val in datatable$column) {
> results[[as.character(val)]] <- my_function(val)
>}
>
>
>To keep extending a vector or list object in a loop is inefficient,
>this
>creates the list with the right length beforehand.
>
>
>Hope this helps,
>
>Rui Barradas
>
>Às 13:21 de 09/04/21, Wolfgang Grond escreveu:
>> Greg,
>>
>> here I get the error message:
>>
>> Error my_function(val) :
>>
>> cannot find function my_function.
>>
>> Am 9. April 2021 12:35:40 MESZ schrieb Greg Minshall
><minshall using umich.edu>:
>>> Wolfgang,
>>>
>>>> result <- assign(paste("subnet_", val, sep = "")
>>>>
>>>> result <- my_function(val)
>>>
>>> i don't understand why you are twice assigning to =result=. also,
>the
>>> first assignment doesn't seem well formatted (t's missing a value?).
>>>
>>> did you mean something like
>>>
>>> : assign(paste("subnet_", val, sep = ""), my_function(val))
>>>
>>> (which i would think should work)?
>>>
>>> cheers, Greg
>>>
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>>
>>
>> -
>> Numberland - Dr. Wolfgang Grond
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>> ______________________________________________
>> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> 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.
>>
>
>______________________________________________
>R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
>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.
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