Hi everyone, I’m using PROC GLIMMIX in SAS to analyze my dataset. Two months ago, I ran my code and obtained certain results. However, the results have changed when I run the same code today with the same dataset. I already checked the distribution of variables and quartiles (proc rank and PROC FREQ), and they appear identical. There are no random functions (RAND()) in my code, and I used ddfm=bw in PROC GLIMMIX. The random effect variable (random intercept / sub=area;) has not changed. Despite all this, my coefficients and confidence intervals have changed. Has anyone experienced something similar? What other factors could affect the results inPROC GLIMMIX, even when using the same data and code? Thanks in advance for your help! ... View more