https://communities.sas.com/t5/Statistical-Procedures/Calculate-moving-standard-deviation/m-p/54415#M2523 Hi - Does anybody know how to calculate moving standard deviation for the last N observations? Thanks! Tue, 14 Jul 2009 18:04:11 GMT CharleneW 2009-07-14T18:04:11Z https://communities.sas.com/t5/Statistical-Procedures/Calculate-moving-standard-deviation/m-p/54415#M2523 Hi - Does anybody know how to calculate moving standard deviation for the last N observations? Thanks! Tue, 14 Jul 2009 18:04:11 GMT https://communities.sas.com/t5/Statistical-Procedures/Calculate-moving-standard-deviation/m-p/54415#M2523 CharleneW 2009-07-14T18:04:11Z https://communities.sas.com/t5/Statistical-Procedures/Calculate-moving-standard-deviation/m-p/54416#M2524 Check out PROC LOESS. I haven't tried it, but it looks like the STD can be output.<BR /> <BR /> Doc Wed, 15 Jul 2009 14:24:13 GMT https://communities.sas.com/t5/Statistical-Procedures/Calculate-moving-standard-deviation/m-p/54416#M2524 Doc_Duke 2009-07-15T14:24:13Z