reg data = clean_data
outest = data_a;
model volume = price factor1 factor2 factor3/selection = stepwise;
output out=model_res ;
quit;
I have the above regression model using stepwise selection method. In the model, I want to keep price as a regressor (or explanatory variable) no matter how it is related to volume.
How can I force the price as a regressor as the stepwise step won't remove it? Thank you.
Don't miss out on SAS Innovate - Register now for the FREE Livestream!
Can't make it to Vegas? No problem! Watch our general sessions LIVE or on-demand starting April 17th. Hear from SAS execs, best-selling author Adam Grant, Hot Ones host Sean Evans, top tech journalist Kara Swisher, AI expert Cassie Kozyrkov, and the mind-blowing dance crew iLuminate! Plus, get access to over 20 breakout sessions.
Learn the difference between classical and Bayesian statistical approaches and see a few PROC examples to perform Bayesian analysis in this video.
Find more tutorials on the SAS Users YouTube channel.