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st: problem with -mat_capp- command

From   "Zurab Sajaia" <>
To   "statalist" <>
Subject   st: problem with -mat_capp- command
Date   Mon, 12 Feb 2007 16:21:07 -0500

Dear all,

Although -mat_capp- is undocumented command and "is of very limited interest, usually only to Stata programmers ..." I decided to post this question, in case folks at Stata have plans to update it.

when merging matrices containing spaces in column names -mat_capp- was issuing the "conformability error

.matrix a= 1,2
.matrix colnames a="one two" three
.matrix b=1\2\3
.mat_capp c : a b, miss(.z)

problem seems to come from the line:
mat colnames `bb12' = `:colfullnames `b1'' `:colfullnames `b2''

and possible solution could be
mat colnames `bb12' = `:colfullnames `b1', quoted' `:colfullnames `b2', quoted'

(from reading the help, I was under impression that option 'quoted' was for -coleq-, roweq- only but it seems doing the same thing with -colfullnames- as well)

I'm using -mat_capp- in my program that is distributed to other users so now I'm deciding whether I wait for the next Stata update or consider other solutions in my code?
Thanks for any advice,

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