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RE: st: Unbalanced parentheses in command when I'm not using any parentheses


From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   RE: st: Unbalanced parentheses in command when I'm not using any parentheses
Date   Wed, 6 Dec 2006 21:57:57 -0000

Sure, it seems strange. But, crudely, Stata knows no semantics, only 
syntax. From most syntactic points of view, unbalanced () [] {} 
are problems and the sooner you find out about them the better. 
As said in my last posting, Stata is misreading your input. 
I'd class that a limitation of Stata's parser, from your and 
any other user's point of view, but I wouldn't call it a bug 
unless I had studied that topic for six months, written parsers, 
and knew I could fix it. None of those are true! 

Not that you are calling it a bug, but just in case anyone's tempted....

Nick 
[email protected] 

Joseph McCrary
 
> Thank you Jeph and Nick. Jeph hit the problem. It works fine 
> when I run 
> histogram on a variable with balanced parentheses in the label (or no 
> parentheses).
> 
> It seems strange to me that what is in the label would make a 
> difference 
> in being able to do the plot.
> 
> Jeph Herrin wrote:
> > Could it be related to the unbalanced "[" in the variable label?
> >
> > Just a thought.
> >
> > Joe McCrary wrote:
> >> I get a strange error message on a histogram command using 
> Stata 9.2
> >> on Windows X64:
> >>
> >> . histogram mc2t0405
> >> (bin=20, start=44.09, width=2.7955)
> >> parentheses unbalanced
> >> r(132);
> >>
> >> However, I have no problem summarizing the same variable.
> >>
> >> . summarize  mc2t0405, detail
> >>
> >>       math % meeting and exceeding standards for all
> >>              students [overall district standa
> >> -------------------------------------------------------------
> >>      Percentiles      Smallest
> >> 1%        58.28          44.09
> >> 5%        65.81          53.72
> >> 10%        71.25          54.31       Obs                 436
> >> 25%       81.455          55.38       Sum of Wgt.         436
> >>
> >> 50%        89.87                      Mean           87.22103
> >>                        Largest       Std. Dev.      10.67012
> >> 75%        95.58            100
> >> 90%        98.76            100       Variance       113.8515
> >> 95%        99.88            100       Skewness      -1.049067
> >> 99%          100            100       Kurtosis       3.645815
> >>
> >> Has anyone seen this? It's happening for any variable I 
> try to run a
> >> histogram on.

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