https://communities.sas.com/t5/SAS-Studio/Compute-the-difference-from-one-visit-to-the-next/m-p/592875#M8071 Thank you! I will try it. Tue, 01 Oct 2019 00:34:59 GMT michelle05 2019-10-01T00:34:59Z https://communities.sas.com/t5/SAS-Studio/Compute-the-difference-from-one-visit-to-the-next/m-p/592869#M8069 <P>Is there any information on how to compute the difference from one visit to the next in a SAS data?</P> Tue, 01 Oct 2019 00:10:47 GMT https://communities.sas.com/t5/SAS-Studio/Compute-the-difference-from-one-visit-to-the-next/m-p/592869#M8069 michelle05 2019-10-01T00:10:47Z https://communities.sas.com/t5/SAS-Studio/Compute-the-difference-from-one-visit-to-the-next/m-p/592871#M8070 <P>You could use the LAG() function or the DIF() function.</P> Tue, 01 Oct 2019 00:17:41 GMT https://communities.sas.com/t5/SAS-Studio/Compute-the-difference-from-one-visit-to-the-next/m-p/592871#M8070 PaigeMiller 2019-10-01T00:17:41Z https://communities.sas.com/t5/SAS-Studio/Compute-the-difference-from-one-visit-to-the-next/m-p/592875#M8071 Thank you! I will try it. Tue, 01 Oct 2019 00:34:59 GMT https://communities.sas.com/t5/SAS-Studio/Compute-the-difference-from-one-visit-to-the-next/m-p/592875#M8071 michelle05 2019-10-01T00:34:59Z