Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.

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

 From Nick Cox To "'statalist@hsphsun2.harvard.edu'" Subject RE: st: RE: question on graphing a bar Date Fri, 18 May 2012 15:47:36 +0100

```The problem is trivial then. You just need to produce a dataset that is of the form exemplified in my first post. With three means, and nothing else explained, you could create that interactively.

Also it is easy enough to automate that:

gen means = .
gen label = ""
su non, meanonly
replace label = "non" in 1
replace means = r(mean) in 1
su self, meanonly
replace label = "self" in 2
replace means = r(mean) in 2
su wage, meanonly
replace  label = "wage" in 3
replace means = r(mean) in 3

gen twothree = _n > 1

graph bar (asis) means in 1/3 , over(label) over(twothree) asyvars stack

Nick
n.j.cox@durham.ac.uk

Jian Zhang

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!
>>

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/
```