I have two probably simple questions about graphing in Stata. #1 involves
getting value labels to appear on the x axis. #2 involves sorting the graph
on a variable other than the x-axis variable.
#1
I have a dataset where each observation contains a string variable
("study_") and a point estimate and lower and upper confidence limits
associated with a single study. I want to plot these estimates and
confidence intervals, with magnitude of each estimate on the y-axis and
study information on the x axis. Apparently string variables are not allowed
with graph twoway, so I encoded a numeric variable (named study) from the
original string variable (named study_), containing the original strings as
value labels.
encode study_, generate(study)
This appears to have worked just as expected:
groups study study_
study study _ Freq.
Percent |
|---------------------------------------------------------------------------
------|
| BROWN (1992) WOM(0.2) BROWN (1992) WOM(0.2) 1
5.26 |
| CAPLAN (2003) TOTAL(2) CAPLAN (2003) TOTAL(2) 2
10.53 |
| DEGNAN (1992) TOTAL(2) DEGNAN (1992) TOTAL(2) 1
5.26 |
groups study study_, nolabel
study study _ Freq. Percent |
|---------------------------------------------------------|
| 1 BROWN (1992) WOM(0.2) 1 5.26 |
| 2 CAPLAN (2003) TOTAL(2) 2 10.53 |
| 3 DEGNAN (1992) TOTAL(2) 1 5.26 |
However, when I go to graph these estimates using the numeric variable
study, the value labels for study do not appear on the x-axis.
scatter _se study || rcap hi_se lo_se study
#2 I'd like to sort the graph in order of ascending standard error of the
estimate.
Neither.....
sort _se
scatter _se study || rcap hi_se lo_se study
Nor....
scatter _se study, sort(_se) || rcap hi_se lo_se study
Nor....
scatter _se study, sort(_se) || rcap hi_se lo_se study, sort(_se)
Will work.
Thanks in advance for help with these simple questions.
Garth Rauscher
Assistant Professor
SPH Epidemiology and Biostatistics
University of Illinois at Chicago
1603 W Taylor St (M/C/ 923)
Chicago, IL 60612
(312) 413-4317 phone
(312) 996-0064 fax
[email protected] <mailto:[email protected]> email
*
* 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/
