Hi, I am a relatively new to SAS but am trying to run a GLIMMIX model to take account of the flexible family (link) options not available in R.... I have a longitudinal dataset of ~98,000 observations on ~30,000 individuals (user). The data is unbalanced as some individuals only have 1 observation and some have many over the period of observation. The outcome variable is continuous and non-normal (A). There is up to 6 independent variables which are categorical or continuous (eg X). The code I am running is proc glimmix data=work.P3 ; model A = X / s dist=expo link=log ; random intercept / subject=user ; run ; When I run this base model I get the following issues: ERROR: Integer overflow on computing amount of memory required. ERROR: The SAS System stopped processing this step because of insufficient memory Can someone advise what I should do to overcome this in SAS. Many thanks in advance. ... View more