Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: Nominal or ordinal?
From
Richard Williams <[email protected]>
To
[email protected]
Subject
Re: st: Nominal or ordinal?
Date
Thu, 12 Aug 2010 23:18:25 -0500
At 09:06 PM 8/12/2010, Alan Acock wrote:
I don't have a hand reference, but if you generate a series of
monotonic transformations of an interval scale, the linear
correlations of each transformation with the interval scale variable
will almost all be over .9. Of course, a non monotonic
transformation would not do this, nor would it be ordinal. Also, it
is possible to have an extreme monotonic transformation for which a
straight line does terribly.
Alan Acock
[email protected]
Alan, can you clarify? Are you talking about, say, different ways of
collapsing a variable into 5 categories, where you use different
cutpoints each time? Or something else?
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME: (574)289-5227
EMAIL: [email protected]
WWW: http://www.nd.edu/~rwilliam
*
* 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/