|
|  |
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: Detecting Outliers
At 08:02 AM 5/2/2006, Raphael Fraser wrote:
I have 10 years data (5000 observations) on patients heights and
weights. Is there any ado-file that could assist in locating possible
outliers?
Raphael
Nick Cox's -extremes- is a helpful utility. It can easily show you
the univariate outliers. If you are interested in those cases where
height and weight are most discrepant, you could compute their ratio
and find the extremes on it. Or, regress weight on height and look
for the largest residuals.
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
FAX: (574)288-4373
HOME: (574)289-5227
EMAIL: [email protected]
WWW (personal): http://www.nd.edu/~rwilliam
WWW (department): http://www.nd.edu/~soc
*
* 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/
