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: Checking to see if the association between two variables is linear or otherwise
From
William Buchanan <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: Checking to see if the association between two variables is linear or otherwise
Date
Fri, 12 Oct 2012 20:25:54 -0700
It's one of the examples in Michael Mitchell's book on data visualization. He used knots at 12 and 16 years of education to illustrate how you could use splines and the different commands to show the different relationships between years of education and earnings.
- Billy
Sent from my iPhone
On Oct 12, 2012, at 20:04, "JVerkuilen (Gmail)" <[email protected]> wrote:
> On Fri, Oct 12, 2012 at 10:46 PM, David Kantor <[email protected]> wrote:
>
>> I agree, noting that highest grade attained is better than years in
>> education, but it is still not appropriate, as it is not an interval scale.
>> The "same" increments between values do not have the same significance.
>> For example, the significance of the increment from grade 11 to 12 is not
>> the same as from 10 to 11.
>
> Interesting point. I bet this could probably be ameliorated using
> regression splines with knots at key grade milestones.
>
> Jay
> --
> JVVerkuilen, PhD
> [email protected]
>
> "Out beyond ideas of wrong-doing and right-doing there is a field.
> I'll meet you there. When the soul lies down in that grass the world
> is too full to talk about." ---Rumi
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/