topic How to get the knots position in transreg in Statistical Procedures

How to get the knots position in transreg

NaNaN — Wed, 11 Apr 2018 18:02:07 GMT

I am running a simple transreg as shown in below. How do I get the values of all knots?

ods graphics on;
proc transreg data = edaniat.development_sample plots=all;
  model identity(r_util_v2) = mspline(CVPRAGG905/nknots=10);
  output tip=t;
run;
ods graphics off;

Thanks!

-Shelly

Re: How to get the knots position in transreg

sld — Wed, 11 Apr 2018 21:43:42 GMT

Add the DETAIL option to the MODEL statement.

Re: How to get the knots position in transreg

NaNaN — Thu, 12 Apr 2018 15:26:20 GMT

Thanks for helping me, @sld. After I added detail option, the knots are displayed. However, I need to save the knots in a dataset for further processing.Do you know how to do it?

Re: How to get the knots position in transreg

sld — Thu, 12 Apr 2018 16:05:37 GMT

In general, when you want to capture output in a SAS dataset for further processing, check ODS Table Names for the procedure:

https://support.sas.com/documentation/cdl/en/statug/63962/HTML/default/viewer.htm#statug_transreg_sect055.htm

If what you want is listed there (which DETAILS is), you can use ODS OUTPUT; see

ODS OUTPUT: Store any statistic created by any SAS procedure

Re: How to get the knots position in transreg

NaNaN — Thu, 12 Apr 2018 18:18:57 GMT

Thank you very much! I got what I need!