Re: st: loop

[Nick Cox <njcoxstata@gmail.com>]

It's not possible to comment on Chiara's code or what went wrong  
because contrary to much repeated advice there are no precise details  
of what she tried.

But given say -newcat121-newcat1212- the log of the frequencies of 1s  
are given by

forval j = 1/12 {
       su newcat12'j',  meanonly
       .... = ln(r(sum))
}

where ... is the assignment to scalar or variable Chiara wants.

But the dummies (indicators) are not necessary for this purpose at  
all. A -tabulate- of the original variable shows the frequencies in  
question.

(For ' read left single quote above when appropriate.)

Nick

On 27 Aug 2012, at 08:22, Muhammad Anees <anees@aneconomist.com> wrote:

> tab cat12, gen(newcat12)
>
> will give you those required variables (categorical or dummies).
>
> HTH
> Anees
>
> On Mon, Aug 27, 2012 at 11:32 AM, Chiara Mussida  
> <cmussida@gmail.com> wrote:
> > Dear all,
> > the variable cat12 takes the values from 1 to 12. I want to create 12
> > different scalars or variables for each cat. The problem is that each
> > scalar must take the values correspondent to the log of the number of
> > obs in each cat (weighted) since i have to write an index which needs
> > those numbers. I tried with forvalues but i did not succeed!
> > Ps: cat12 is a variable for occupational categories (from 1 to 12).  
> > In
> > the index i put the weighted values (weight available in my dataset).
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