I would like to perform exact Cochran-Armitage test. I followed this programming. (https://documentation.sas.com/?docsetId=statug&docsetTarget=statug_code_freqex8.htm&docsetVersion=14.2&locale=en) It worked and I obtained the P-value of 0.0288 (asymptotic test, two-sided). However, no P-value under the exact test, even though my code contains "exact trend". I would be very grateful if you could please show me the correct programming for this. Thank you for your help. data try; input year ama$ count @@; datalines; 2005 YES 33 2005 NO 77 2006 YES 41 2006 NO 113 2007 YES 42 2007 NO 102 2008 YES 53 2008 NO 210 2009 YES 69 2009 NO 246 2010 YES 78 2010 NO 275 ; ods graphics on; proc freq data=try; tables ama*year / trend measures cl plots=mosaicplot; test smdrc; exact trend / maxtime=60; weight Count; title 'armitage test'; run; ods graphics off;
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