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st: RE: Re: table with zero rows


From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: Re: table with zero rows
Date   Thu, 4 Sep 2008 14:07:08 +0100

Thanks to Kit for the plug. The njc_stuff he refers to is also on SSC.

I endorse Ben Jann's -fre- as the best bet for tabulation of single
variables when 
-tabulate- does not answer the need. It does an outstanding job, with a
splendid set of bells and whistles. 

But -fre- is, as its help clearly states, only for univariate tables. If
you wanted the same functionality for two or more variables, then
-tabcount- from SSC (and also -groups- from SSC) are possibilities. 

SJ-3-4  pr0011  . . . . . . . .  Speaking Stata: Problems with tables,
Part II
        Q4/03   SJ 3(4):420--439                                 (no
commands)
        reviews three user-written commands (tabcount, makematrix,
        and groups) as different approaches to tabulation problems

gives discussion and its .pdf is accessible to all, subscribers to the
Stata Journal or no. 

Nick 
[email protected] 

Kit Baum

In addition to Ben Jann's -fre-, help njc_best_stuff reveals

ssc describe tabcount

Jeph Herrin 

> Sometimes a variable which takes sequential integer
> values does not take all possible values that it could.
> For instance, -myvar- may represent a survey response
> on a scale of 1 to 5, but no respondents chose "3".
>
> I would like to generate frequency tables for such variables
> that include rows for the unused values. So
>
>       myvar |      Freq.     Percent        Cum.
> - ------------+-----------------------------------
>           1 |         37       17.54       17.54
>           2 |        169       80.09       97.63
>           3 |          0        0.00       97.63
>           4 |          5        2.37      100.00
>           5 |          0        0.00      100.00
> - ------------+-----------------------------------
>       Total |        211      100.00
>
>
> Now, I can see how to write the do-file, but I keep
> putting it off in the hopes of finding some trick
> (or existing program) that will do the job.

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