I'm still relatively new to SAS and I am trying to conduct estimates using a Joinpoint regression model since I've read about how accurate it is in predictions. I have no idea where to begin in coding it though. Has anyone used this and has sample code to help me along?
Hello,
You can find lots of info (including example programs) on the web.
These are the keywords you need are:
Piecewise Regression Model in SAS
OR
Segmented regression model in SAS
OR
Change point regression model in SAS
Here is a nice article (including SAS code):
http://people.stat.sfu.ca/~cschwarz/Stat-650/Notes/PDFbigbook-SAS/SAS-part018.pdf
Regression - hockey sticks, broken sticks, piecewise, change points
Here is an example from the SAS documentation:
SAS/STAT(R) 14.1 User's Guide
Example 81.1: Segmented Model
Koen
Is this for cancer data analysis?
If so, look into the JoinPoint software from NCI.
Hello,
You can find lots of info (including example programs) on the web.
These are the keywords you need are:
Piecewise Regression Model in SAS
OR
Segmented regression model in SAS
OR
Change point regression model in SAS
Here is a nice article (including SAS code):
http://people.stat.sfu.ca/~cschwarz/Stat-650/Notes/PDFbigbook-SAS/SAS-part018.pdf
Regression - hockey sticks, broken sticks, piecewise, change points
Here is an example from the SAS documentation:
SAS/STAT(R) 14.1 User's Guide
Example 81.1: Segmented Model
Koen
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