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st: asarray_keys() error


From   Matthew White <mwhite@poverty-action.org>
To   statalist@hsphsun2.harvard.edu
Subject   st: asarray_keys() error
Date   Wed, 15 May 2013 17:35:54 -0400

Hi Statalist members,

I'm running the following commands in Stata 12.1 SE:

mata:
A = asarray_create("string", 2)
asarray(A, ("type", "keep"), 1)
asarray(A, ("name", "char"), 2)
asarray_keys(A)

However, -asarray_keys()- issues the following error message:

asarray_keys_dup():  3201  vector required
asarray_keys():     -  function returned error
<istmt>:     -  function returned error

If I run -asarray()- for just one key, -asarray_keys()- does not
result in an error. For example:

mata:
A = asarray_create("string", 2)
asarray(A, ("type", "keep"), 1)
asarray_keys(A)
end

If I change any one of the elements of the keys, -asarray_keys()- also
does not result in an error:

mata:
A = asarray_create("string", 2)
asarray(A, ("example", "keep"), 1)
asarray(A, ("name", "char"), 2)
asarray_keys(A)
end

Any suggestions would be appreciated.

Thank you,
Matt White

--
Matthew White
Senior Project Associate
Innovations for Poverty Action
101 Whitney Avenue, New Haven, CT 06510 USA
www.poverty-action.org
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