https://community.jmp.com/t5/Discussions/Best-Fit-Line/m-p/229369#M45497 <P>I am having trouble in a data set getting the best line of fit.&nbsp; I am able to get the smooth line in graph builder but when I click "best fit" icon nothing happens.&nbsp; Then when I run fit Y by X, I don't see anywhere I can select the best fitting line.&nbsp; Do I need to change something in my settings maybe?&nbsp;&nbsp;</P> Tue, 15 Oct 2019 18:38:24 GMT jkimmich 2019-10-15T18:38:24Z https://community.jmp.com/t5/Discussions/Best-Fit-Line/m-p/229369#M45497 <P>I am having trouble in a data set getting the best line of fit.&nbsp; I am able to get the smooth line in graph builder but when I click "best fit" icon nothing happens.&nbsp; Then when I run fit Y by X, I don't see anywhere I can select the best fitting line.&nbsp; Do I need to change something in my settings maybe?&nbsp;&nbsp;</P> Tue, 15 Oct 2019 18:38:24 GMT https://community.jmp.com/t5/Discussions/Best-Fit-Line/m-p/229369#M45497 jkimmich 2019-10-15T18:38:24Z https://community.jmp.com/t5/Discussions/Best-Fit-Line/m-p/229370#M45498 <P>Here is a picture of the example.&nbsp; As you can see in the picture I have both the smooth line and the best line of fit selected, however, I only see the smooth line.&nbsp;&nbsp;</P> Tue, 15 Oct 2019 18:41:21 GMT https://community.jmp.com/t5/Discussions/Best-Fit-Line/m-p/229370#M45498 jkimmich 2019-10-15T18:41:21Z https://community.jmp.com/t5/Discussions/Best-Fit-Line/m-p/229371#M45499 <P>Your time variable has the nominal modeling type. That means JMP thinks it is categorical, therefore regression (or best fit line) is not appropriate. Change the time to have the continuous modeling type.</P> Tue, 15 Oct 2019 19:05:37 GMT https://community.jmp.com/t5/Discussions/Best-Fit-Line/m-p/229371#M45499 Dan_Obermiller 2019-10-15T19:05:37Z