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Re: st: Histogram plot with frequency percentage and number of cases


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Histogram plot with frequency percentage and number of cases
Date   Sun, 30 Dec 2012 09:12:16 +0000

By "unique function" I understand "single command". I think you need
some warm-up, but it's not difficult to do it with a few commands.

Below the offset "freq + 1" is empirical; your constant may differ from 1.

Nick

sysuse auto, clear
bysort rep78 : gen freq = _N
count if rep78 < .
local total = r(N)
gen mylabel = string(freq) + "   (" + string(100 * freq / `total' ,
"%2.1f") + "%)"
twoway bar freq rep78, barw(0.9) || scatter freq rep78 , ms(i)
mla(mylabel) mlabpos(0)
gen freq2 = freq + 1
twoway bar freq rep78, barw(0.9) || scatter freq2 rep78 , ms(i)
mla(mylabel) mlabpos(0) legend(off) ysc(off)


On Sat, Dec 29, 2012 at 10:59 PM, Fernando Sánchez
<fsanchez@euclides.com> wrote:

> I am interested in plotting an histogram that shows over each of its bars
> the percentage and number of cases in this way: 7 (25%). Up till now I have
> been able to draw an histogram with the percentage and a barplot with the
> number of cases but not all in a unique chart.
>
> The question is as follows: Is it possible to do it with a unique function
> in the same chart?

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