[R] Error message: object of type 'closure' is not subsettable

Joshua Wiley jwiley.psych at gmail.com
Tue Feb 28 10:25:50 CET 2012

Hi Aparna,

Can you please post a reproducible example?  It is difficult to
provide much concrete help without having "testStatistics".  One thing
you might try is looking at:


is it actually a list?  If it is not (most likely given the error) and
it is supposed to be, you need to figure out what aspect of the
generation of it is going awry.



On Tue, Feb 28, 2012 at 12:23 AM, Aparna Sampath
<aparna.sampath26 at gmail.com> wrote:
> Hi All
> I am trying to use the unlist() in R to a list variable.  The following
> statements are within a function.
> {
> denominator <- sqrt(s1 / res.em1$n + s2 / res.em2$n)
>  returnValue <- l2 / (denominator + 11)
>  attr(returnValue,"numerator") <- l2
>  attr(returnValue,"denominator") <- denominator
>  returnValue
> }
> And when I try to unlist the variable returnValue
>  numerators <- unlist(testStatistics["numerator",])
>  denominators <- unlist(testStatistics["denominator",])
> I get the following error:
>>Error in testStatistics["numerator", ] :
>  object of type 'closure' is not subsettable
> I read some threads in R help on this error and they had asked to check if
> we are using the right datatype to the right function. But in my case it is
> pretty straightforward since I just list it in one function and try to
> unlist it later. Any suggestions?
> Thanks for the help :)
> --
> View this message in context: http://r.789695.n4.nabble.com/Error-message-object-of-type-closure-is-not-subsettable-tp3752886p4427399.html
> Sent from the R help mailing list archive at Nabble.com.
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> and provide commented, minimal, self-contained, reproducible code.

Joshua Wiley
Ph.D. Student, Health Psychology
Programmer Analyst II, Statistical Consulting Group
University of California, Los Angeles

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