```Date: Thu, 27 Aug 1998 13:55:01 -0400 Reply-To: Jack Shoemaker Sender: "SAS(r) Discussion" From: Jack Shoemaker Subject: Re: Percentiles Comments: To: Michael Hines Michael, By default UNIVARIATE uses a PCTDEF of 3 which means that it interpolates quantiles by averaging the two adjacent observations. There are four other definitions you may use which are amply described in the documentation. Have a blast! - Jack -- Jack Shoemaker / Oxford Specialty Management / JShoemak@oxhp.com + -----Original Message----- + From: Michael Hines [mailto:mshines@PURDUE.EDU] + Sent: Wednesday, August 26, 1998 5:29 PM + To: SAS-L@UGA.CC.UGA.EDU + Subject: Percentiles + + + Mark, Tim and other interested parties. + + I am runing SAS System for the personal computer, ver 6.12. + + Here is the program I ran, the data provided by another + person trying to + explain the concept. + + It says that the 10th percentile is at the point 3, and the + 90th percentile + is at the point 19 - neither of which values are in the observations. + + Now, perhaps, you see my difficulty in trying to explian this + to others.... + + The other suggestion also didn't come up 3 and 19. + + ----------start of code------------ + data sample; + infile cards; + input @1 val 10. ; + cards; + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 + ; + run; + + proc print; + run; + + proc univariate noprint; + var val; + output out=stats p10=ldec p90=udec; + run; + + Proc print; + run; + ----------end of code----------------- + produces output - one line with values for ldec, udec from proc print. + + Enjoy.... + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + =================================================================== + Internet: mshines@purdue.edu | Michael S. Hines CDP,CISA,CIA,CFE + Voice: (765) 494-5338 | Coordinator of Systems and Programming + FAX: (765) 496-1466 | Purdue University + | 1280 Engineering Administration + | West Lafayette, IN 47907-1280 + ```

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