https://community.jmp.com/t5/Discussions/Transfer-Function/m-p/616066#M81576 <P>Please check out this reference <A href="https://onlinelibrary.wiley.com/doi/book/10.1002/9781118619193" target="_self">Time Series Analysis</A> Any edition should be fine.</P> <P>Look for the chapter on transfer function models. Pay attention to the discussion regarding prewhitening and impulse response. Look for a figure listing some examples of impulse response functions in that chapter.</P> <P>Your plot here does not resemble an obvious pattern, so maybe you need to fit a bunch of different orders to find out the most appropriate one.</P> Fri, 24 Mar 2023 03:34:27 GMT peng_liu 2023-03-24T03:34:27Z https://community.jmp.com/t5/Discussions/Transfer-Function/m-p/613935#M81402 <P>Newbie here.. I am struggling to teach myself how to run a transfer model. I am trying to run a transfer function for sales with temperature being the input variable.&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="ChiSquareLamb91_0-1679181276142.png" style="width: 400px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/51237i34B9851FFB6E142C/image-size/medium?v=v2&amp;px=400" role="button" title="ChiSquareLamb91_0-1679181276142.png" alt="ChiSquareLamb91_0-1679181276142.png" /></span></P><P>&nbsp;</P><P>After prewhitening the data- I have found lags at 5, 6, and 8.&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="ChiSquareLamb91_1-1679181328099.png" style="width: 400px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/51238iBBE3F071BBEAC35B/image-size/medium?v=v2&amp;px=400" role="button" title="ChiSquareLamb91_1-1679181328099.png" alt="ChiSquareLamb91_1-1679181328099.png" /></span></P><P>&nbsp;</P><P>I am stuck on how to continue from here. Thank you for any help you may be able to provide.&nbsp;</P><P>&nbsp;</P> Thu, 08 Jun 2023 16:27:24 GMT https://community.jmp.com/t5/Discussions/Transfer-Function/m-p/613935#M81402 ChiSquareLamb91 2023-06-08T16:27:24Z https://community.jmp.com/t5/Discussions/Transfer-Function/m-p/616066#M81576 <P>Please check out this reference <A href="https://onlinelibrary.wiley.com/doi/book/10.1002/9781118619193" target="_self">Time Series Analysis</A> Any edition should be fine.</P> <P>Look for the chapter on transfer function models. Pay attention to the discussion regarding prewhitening and impulse response. Look for a figure listing some examples of impulse response functions in that chapter.</P> <P>Your plot here does not resemble an obvious pattern, so maybe you need to fit a bunch of different orders to find out the most appropriate one.</P> Fri, 24 Mar 2023 03:34:27 GMT https://community.jmp.com/t5/Discussions/Transfer-Function/m-p/616066#M81576 peng_liu 2023-03-24T03:34:27Z