https://community.jmp.com/t5/Discussions/Cochran-Armitage-exact/m-p/448866#M69567 <P>You must be sure that the data columns that you use in the Y and X analysis roles use the Ordinal modeling type before you initiate this analysis. Then select Analyze &gt; Fit Y by X, select the binary response and click Y. Select the year data column and click X. Click the red triangle at the top and select the trend test.</P> Tue, 04 Jan 2022 14:54:40 GMT Mark_Bailey 2022-01-04T14:54:40Z https://community.jmp.com/t5/Discussions/Cochran-Armitage-exact/m-p/448754#M69558 <P>I have data for a 5 year period. there is binary feature (registered/unregistered) represented by a column in the data.</P> <P>&nbsp;</P> <P>I want to see if there is a trend for proportion unregistered items year by year across the 5 year period.</P> <P>The Cochran Armitage trend test seems like the appropriate statistic (yes?).&nbsp;</P> <P>&nbsp;</P> <P>The the number of unregistered items is single digits for multiple years, and is even zero one year. &nbsp;It would seem I need the Cochrane Armitage Exact test, but don't think it is available (JMP14.3.0 for Mac)</P> <P>&nbsp;</P> <P>Am I missing something?&nbsp;</P> Tue, 01 Jul 2025 19:57:45 GMT https://community.jmp.com/t5/Discussions/Cochran-Armitage-exact/m-p/448754#M69558 dweinber 2025-07-01T19:57:45Z https://community.jmp.com/t5/Discussions/Cochran-Armitage-exact/m-p/448866#M69567 <P>You must be sure that the data columns that you use in the Y and X analysis roles use the Ordinal modeling type before you initiate this analysis. Then select Analyze &gt; Fit Y by X, select the binary response and click Y. Select the year data column and click X. Click the red triangle at the top and select the trend test.</P> Tue, 04 Jan 2022 14:54:40 GMT https://community.jmp.com/t5/Discussions/Cochran-Armitage-exact/m-p/448866#M69567 Mark_Bailey 2022-01-04T14:54:40Z