topic Re: History of Changes to SAS PROCs in Statistical Procedures

History of Changes to SAS PROCs

Linkachu — Wed, 27 Apr 2016 19:44:28 GMT

Is there a place where I can see all the changes that have been made to a PROC over time? I am interested in looking at specific PROCs and seeing when certain features were added for a discussion of how certain methods have developed over time. Right now I am interested in PROC PHREG, but am also curious about others.

Re: History of Changes to SAS PROCs

Doc_Duke — Wed, 27 Apr 2016 20:23:20 GMT

Though not a formal approach, I have had success with Google searches like

phreg new features site:sas.com

It works reasonalby well for PROCs with names that are not common English words (versus, say, PRINT, MEANS).

Re: History of Changes to SAS PROCs

Rick_SAS — Thu, 28 Apr 2016 00:09:22 GMT

Every release contains a document called "What's new in ...". For example, PROC PHREG is in SAS/STAT, so you might search for

"What's new in SAS/STAT 13.2" site:support.sas.com

You can also go to http://support.sas.com/documentation/132/index.html

and use the links in the left-hand sidebar to see what is new in 12.1, 13.1, 13.2, 14.1, etc

Re: History of Changes to SAS PROCs

Linkachu — Tue, 03 May 2016 13:47:44 GMT

Thanks Rick! It would be nice if I could look at the history for one proc in one place. Your solution provides the changes to all procs for a given version, but I can get the info I need by going through each version.

Re: History of Changes to SAS PROCs

Rick_SAS — Tue, 03 May 2016 14:06:25 GMT

Yes, like you I have sometimes wished for an easy way to look at a single procedure through time. For example, when someone on this forum asks how to do something, but says they are running SAS 9.3, I don't usually remember which options are available to them.

I'll bet someone with good SAS (or python) skills could "scrape the web" and come up with the report that we want.