https://communities.sas.com/t5/Statistical-Procedures/Long-Tail-Distributions/m-p/64750#M3091 PROC CAPABILITY can fit a wide variety of distributions, including the Johnson family of distributions, which would allow you to fit very long tailed distributions. Fri, 05 Mar 2010 14:49:55 GMT Paige 2010-03-05T14:49:55Z https://communities.sas.com/t5/Statistical-Procedures/Long-Tail-Distributions/m-p/64749#M3090 We are trying to fit some "long tail" distributions, either generalized extreme value distributions, power laws, etc. But we have little experience with it and wondered if anyone else had used SAS to do something similar. Thanks for any feedback. Thu, 04 Mar 2010 16:29:53 GMT https://communities.sas.com/t5/Statistical-Procedures/Long-Tail-Distributions/m-p/64749#M3090 jpindfw 2010-03-04T16:29:53Z https://communities.sas.com/t5/Statistical-Procedures/Long-Tail-Distributions/m-p/64750#M3091 PROC CAPABILITY can fit a wide variety of distributions, including the Johnson family of distributions, which would allow you to fit very long tailed distributions. Fri, 05 Mar 2010 14:49:55 GMT https://communities.sas.com/t5/Statistical-Procedures/Long-Tail-Distributions/m-p/64750#M3091 Paige 2010-03-05T14:49:55Z