Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: Using weights in a graph dot


From   "Salome Dell-Kuster" <skuster@uhbs.ch>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Using weights in a graph dot
Date   Thu, 03 Sep 2009 18:11:40 +0200

Hello,

i got stuck in a problem with the weights for a 'graph dot'.  And if I
may, I would like to ask you for help.

My plan was to create a 'graph dot' for several groups where the size of
the marker should represent the number of observations in the
corresponding group. I could find the weight-option in the help file and
tried several ways but without success (on the other hand, I was able to
do it the same way in a scatter plot, which is not as convenient for all
the other features of the graph). The ways I tried out was with _n
(system variable) and with a variable including the effectiv numbers of
observations and I also used proportions as another solution - but
nothing worked. 

My command: graph dot (median) diff_ga_aa [aweight=number], over(group1)
over(group2) 

One problem could be that the number of observations goes from about 2
to 1400 in the different groups.

Could you give me any hints how to solve this problem or recommend me a
book where I can find an example. 

Thank you very much in advance for your help.

Kind regards,

Salome Dell-Kuster

Salome Dell-Kuster, MD MSc
Departement Anästhesie 
& Institut für klinische Epidemiologie
Universitätsspital Basel
CH - 4031 Basel

+41 61 265 25 25
*
*   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/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index