While the running the proc phreg on counting data framework, I am using baseline statement as shown below:   proc phreg data = mod plots(overlay cl) = (survival cumhaz) outest = est namelen = 50; model (start, stop) * depvar (0) = &model_varlist. / itprint rl = both ties = breslow selection = stepwise sle = 0.2 sls = 0.05; baseline out = baseline survival = survival xbeta = xbeta covariates = val cumhaz = cumhaz / method = pl; run;   However, my covariates dataset have close to 3 million records. Baseline data creates 20 observations for each of these 3 million observations as my modeling data experienced events at 20 time points. With 60 million observation data, my disk space and memory throws error.   I am not interested in all 20 survival probabilities. Is there a way I can stop the baseline to create 20 probabilities. Only 1 or 2 survival probabilities at t = 30 and 60 days will suffice. This way my data set will only be of 6 million observations.   Any immediate help is highly appreciated. ... View more