Re: st: RE: Bargraphs, order, SD

[Knag Anne-Christine <anne-christine.knag@imr.no>]

Hi, thank you. But how can I use a twoway when I am plotting just one
variable (e.g weight) of different types (1C, 1L etc)?
I tried the suggested syntax, but it came up with varlist:  type:  string
variable not allowed
?

AC


On 6/11/07 1:00 PM, "Nick Cox" <n.j.cox@durham.ac.uk> wrote:

> You need to move away from -graph bar- once you
> want to do something not obviously available.
> 
> -twoway bar- is ultimately more flexible. Ulrich's
> example underlines this, so heed his advice.
> 
> Here is a dopey example:
> 
> u auto, clear
> egen mean = mean(mpg), by(foreign)
> egen sd = sd(mpg), by(foreign)
> gen upper = mean + sd
> gen lower = mean - sd
> twoway bar mean foreign, barw(0.4) || ///
> rcap upper lower foreign, xla(0 1, valuelabel) ///
> ysc(r(0, .)) legend(off) ///
> subtitle(mean +/- sd, place(w)) ytitle(`: var label mpg')
> 
> Biologists in particular seems overly fond of just
> showing means (+/- sd, se, or constant * se) in what
> Stata user Paul Seed has called detonator plots.
> 
> A dotplot with means and sds added (see -dotplot-)
> shows far more information.
> 
> Nick 
> n.j.cox@durham.ac.uk
> 
> Knag Anne-Christine
>  
>> Thank you Ulrich.
>> What do I then do if I want to make simple one-way bargraphs
>> by the same
>> order? 
>> The syntax (without the order)
>> 
>> graph bar (mean)  variable1, over (type)
>> 
>> And how can I add SD to the bars?
>  
>> On 6/8/07 9:51 AM, "Ulrich Kohler" <kohler@wzb.eu> wrote:
>> 
>>> Knag Anne-Christine wrote:
>>>> By "this order" I meant the order that I have given
>>>> syntax:
>>>> generate order = 1 if type== "1C"
>>>> replace order = 2 if type== "1L"
>>>> replace order = 3 if type== "1M"
>>>> replace order = 4 if type == "1E"
>>>> replace order = 5 if type== "2C"
>>>> replace order = 6 if type== "2L"
>>>> replace order = 7 if type== "2M"
>>>> replace order = 8 if type== "2H"
>>>> replace order = 9 if type== "2E"
>>>> 
>>>> Since the graphs are ordered alphanumerically I need to
>> add an "sort
>>>> according to order"-command somewhere in the syntax for the plots:
>>>> 
>>>> twoway (bar production day_of_prod), ytitle(Production)
>> xtitle(Day of
>>>> production) by(type)
>>>> 
>>>> I also want to include a 10th plot showing the total
>> production of all
>>>> types.
>>> 
>>> How about:
>>> 
>>> ----------------------------------------------example.do
>>> label define order                                ///
>>>   1 "1C" 2 "1L" 3 "1M" 4 "1E" 5 "2C"              ///
>>>   6 "2L" 7 "2M" 8 "2H" 9 "2E"
>>> 
>>> encode type, gen(order) label(order)
>>> 
>>> twoway                                            ///
>>>  || bar production day_of_prod                    ///
>>>  || , ytitle(Production) xtitle(Day ofproduction) ///
>>>       by(order, total)
>>> ---------------------------------------------------------
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/