Hi, I'm trying to fit a Bayesian Piecewise Exponential model using PROC PHREG. But, I'm getting the error below. Can someone please guide me to solve this error. My code and details of the data are at the end. Let me know if you need more info. about the data. Thanks.w NOTE: Convergence criterion (GCONV=1E-8) satisfied. ERROR: Floating Point Zero Divide. ERROR: Termination due to Floating Point Exception NOTE: The SAS System stopped processing this step because of errors. Code: PROC PHREG data=lib.sample; class X1 X2 X3 ; model TIME_mon*status(0)=X1 X2 X3 X4 X5 X6 ; bayes nbi=1000 nmc=10000 thinning=5 seed=1980 plots=all coeffprior= uniform piecewise=hazard (ninterval=4); run; X1, X2, X3  are categorical variables and X4, X5, X6 are continuous variables. TIME_mon is survival time in months (discrete). It's right censored data. ... View more