topic stability analysis shelf life error in Discussions https://community.jmp.com/t5/Discussions/stability-analysis-shelf-life-error/m-p/15800#M14440 <HTML><HEAD></HEAD><BODY><P>Hi, </P><P></P><P>When I want to run stability analysis in JMP, I click the following: Analyze-&gt; Reliability and survival -&gt; Degradation. </P><P>If my data has an increasing trend and I provide the upper specification limit, the result is fine and is what I expect. </P><P>If my data has a decreasing trend and I provide the lower specification limit, the result is also fine. </P><P><STRONG style=": ; color: #0000ff;">However,</STRONG> if my data has an increasing trend and I have a lower specification limit, I expect that the shelf life should be very high or infinite. But the result in JMP will show that the shelf life is 0, and this is because the lower bound of 95% confidence limit crosses the lower specification at a time less than 0. Please see attached example. Thanks. </P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="10604_jmp stability.png" style="width: 908px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/2487i0C3AF9325D329324/image-size/medium?v=v2&amp;px=400" role="button" title="10604_jmp stability.png" alt="10604_jmp stability.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="10605_jmp data.png" style="width: 427px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/2488iB8F17B88C36BE01E/image-size/medium?v=v2&amp;px=400" role="button" title="10605_jmp data.png" alt="10605_jmp data.png" /></span></P></BODY></HTML> Wed, 19 Oct 2016 01:20:39 GMT girlme80_yahoo_ 2016-10-19T01:20:39Z stability analysis shelf life error https://community.jmp.com/t5/Discussions/stability-analysis-shelf-life-error/m-p/15800#M14440 <HTML><HEAD></HEAD><BODY><P>Hi, </P><P></P><P>When I want to run stability analysis in JMP, I click the following: Analyze-&gt; Reliability and survival -&gt; Degradation. </P><P>If my data has an increasing trend and I provide the upper specification limit, the result is fine and is what I expect. </P><P>If my data has a decreasing trend and I provide the lower specification limit, the result is also fine. </P><P><STRONG style=": ; color: #0000ff;">However,</STRONG> if my data has an increasing trend and I have a lower specification limit, I expect that the shelf life should be very high or infinite. But the result in JMP will show that the shelf life is 0, and this is because the lower bound of 95% confidence limit crosses the lower specification at a time less than 0. Please see attached example. Thanks. </P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="10604_jmp stability.png" style="width: 908px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/2487i0C3AF9325D329324/image-size/medium?v=v2&amp;px=400" role="button" title="10604_jmp stability.png" alt="10604_jmp stability.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="10605_jmp data.png" style="width: 427px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/2488iB8F17B88C36BE01E/image-size/medium?v=v2&amp;px=400" role="button" title="10605_jmp data.png" alt="10605_jmp data.png" /></span></P></BODY></HTML> Wed, 19 Oct 2016 01:20:39 GMT https://community.jmp.com/t5/Discussions/stability-analysis-shelf-life-error/m-p/15800#M14440 girlme80_yahoo_ 2016-10-19T01:20:39Z Re: stability analysis shelf life error https://community.jmp.com/t5/Discussions/stability-analysis-shelf-life-error/m-p/15801#M14441 <HTML><HEAD></HEAD><BODY><P>Could you please let us know what version of JMP you are using? The results seem correct in JMP versions 11 and 12. Please see below.</P><P></P><P></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="10615_Screen Shot 2015-12-09 at 11.45.01 AM.png" style="width: 987px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/2496i579DE1551FFABE87/image-size/medium?v=v2&amp;px=400" role="button" title="10615_Screen Shot 2015-12-09 at 11.45.01 AM.png" alt="10615_Screen Shot 2015-12-09 at 11.45.01 AM.png" /></span></P><P><IMG /></P></BODY></HTML> Wed, 19 Oct 2016 01:21:54 GMT https://community.jmp.com/t5/Discussions/stability-analysis-shelf-life-error/m-p/15801#M14441 ltw 2016-10-19T01:21:54Z