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# Re: st: RE: question on graphing a bar

 From Jian Zhang To statalist@hsphsun2.harvard.edu Subject Re: st: RE: question on graphing a bar Date Fri, 18 May 2012 22:37:56 +0800

```Each bar represents the mean of the variable in the sample.

On Fri, May 18, 2012 at 10:35 PM, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> If you don't ask the real question, you may not get the real answer.
>
> This still isn't clear to me: How is each variable going to produce one and only one bar?
>
> Nick
> n.j.cox@durham.ac.uk
>
> Jian Zhang
>
> Nick, it works. but what  i have is a data set of three variables, say
> non-earned income, wage_income and self-employment income. what i
> wanted is a bar chart where there is one bar for non-earned income,
> then one bar for wage_income and one bar for self-employment income
> but the two later bars were stacked. Note that all the observations
> have values for the three variables. So it is not possible to use the
> option of over.  Is there a way to graph a bar like this with the
> data?
>
> On Fri, May 18, 2012 at 10:05 PM, Nick Cox <n.j.cox@durham.ac.uk> wrote:
>> Consider
>>
>> clear
>> set obs 3
>> gen cat = _n
>> gen twothree = _n > 1
>> gen y = runiform()
>> graph bar (asis) y , over(cat) over(twothree) asyvars stack
>>
>> Nick
>> n.j.cox@durham.ac.uk
>>
>> Jian Zhang
>>
>> I was trying to graph a vertical bar chart where there are three bars.
>> but i wanted the second and third bars stacked. Does anyone know how
>> to do this? thanks!
>>
>
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--
Jian Zhang（张舰）
Assistant Professor
School of Economics
Central University of Finance and Economics, Beijing, China 100081
Email: jian32@gmail.com
Cell Phone: 86 - 137 188 65377
Web Page: http://econ.cufe.edu.cn/html/2010-07-16/312.html

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```