http://snipplr.com/language/sas/tags/number Recent snippets posted on Snipplr.com en-us Sun, 19 May 2013 06:24:44 GMT http://snipplr.com/view/34215/random-sample-selection/ Last week my manager asked me to randomly pick 10%observations from a large data set and then create a listing so that the Data management programmers can QC the data. I want to share some thoughts here … how easy and simple to do random sampling. Approach 1: Data step Approach: In this approach, the observations are shuffled using the RANUNI function which assigns a random number to each observation.

]]> Tue, 11 May 2010 10:40:28 GMT http://snipplr.com/view/34215/random-sample-selection/ http://snipplr.com/view/18283/how-to-calculate-number-of-years-and-number-of-days-between-2-dates/ Exploring the yrdif and datdif functions in SAS as well as INTCK function: There are several ways to calculate the number of years between two dates and out of all the methods, YRDIF function results the most accurate value. Syntax: ageinyrs = YRDIF(birthdate, enddate, 'act/act'); ag_indays = DATDIF(birthdate, enddate, 'act/act'); Read more at: http://studysas.blogspot.com/2009/03/how-to-calculate-number-of-years-and.html

]]> Thu, 13 Aug 2009 17:15:50 GMT http://snipplr.com/view/18283/how-to-calculate-number-of-years-and-number-of-days-between-2-dates/