I am trying to figure out how to test parameters while using robust regressions (proc robustreg). That is, I would like to compare the values of several parameters with each other.
For a standard OLS model, one can write
test X1-X2=X3-X4; OR
text X1-X2-X3+X4;
Neither works for me. Any suggestions?
SAS Innovate 2025: Save the Date
SAS Innovate 2025 is scheduled for May 6-9 in Orlando, FL. Sign up to be first to learn about the agenda and registration!
ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.