https://communities.sas.com/t5/Statistical-Procedures/Random-selection-with-unequal-probabilities/m-p/237883#M12602 <P>Hi everyone, I have a question regarding randomly subsetting the data based on predetermined unequal probabilites. Is there any technique or SAS procude that would help me accopmplish this? For example I have a data with 1000 subjects, and subjects are assigned probabilties that varies across individuals. Based on these probailities I would like to randomly select 100 subjects. How would I do this?&nbsp;</P> Fri, 04 Dec 2015 19:32:29 GMT MetinBulus 2015-12-04T19:32:29Z https://communities.sas.com/t5/Statistical-Procedures/Random-selection-with-unequal-probabilities/m-p/237883#M12602 <P>Hi everyone, I have a question regarding randomly subsetting the data based on predetermined unequal probabilites. Is there any technique or SAS procude that would help me accopmplish this? For example I have a data with 1000 subjects, and subjects are assigned probabilties that varies across individuals. Based on these probailities I would like to randomly select 100 subjects. How would I do this?&nbsp;</P> Fri, 04 Dec 2015 19:32:29 GMT https://communities.sas.com/t5/Statistical-Procedures/Random-selection-with-unequal-probabilities/m-p/237883#M12602 MetinBulus 2015-12-04T19:32:29Z https://communities.sas.com/t5/Statistical-Procedures/Random-selection-with-unequal-probabilities/m-p/237888#M12603 <P>If I understand what you want, your probabability value could be used as a SIZE parameter in Proc surveyselect and use one of the probability proportionate to size selection methods such as PPS.</P> Fri, 04 Dec 2015 20:27:57 GMT https://communities.sas.com/t5/Statistical-Procedures/Random-selection-with-unequal-probabilities/m-p/237888#M12603 ballardw 2015-12-04T20:27:57Z