https://community.jmp.com/t5/Discussions/Firth-bias-adjusted-estimates/m-p/3129#M3129 I am running some choice models in JMP. I am using the one-table method rather than the method with the separate profile, response, and subject tables. When I run my model with the Firth bias adjusted estimates box checked, the model fails with the note "cannot calculate objective at starting value." When I uncheck the Firth box, the model runs and I get output that appears reasonable. Couple questions:<BR /><BR />1) Is it essential to use the Firth bias adjusted estimates?<BR />2) Is there something that I could do to make the Firth bias adjusted estimates run? <BR /><BR />I am wondering if it might be worth trying to run the model with the profile data separated from the response and subject data. <BR /><BR />Any advice would be appreciated. <BR /><BR />Thanks. Fri, 25 Mar 2011 15:12:07 GMT 2011-03-25T15:12:07Z https://community.jmp.com/t5/Discussions/Firth-bias-adjusted-estimates/m-p/3129#M3129 I am running some choice models in JMP. I am using the one-table method rather than the method with the separate profile, response, and subject tables. When I run my model with the Firth bias adjusted estimates box checked, the model fails with the note "cannot calculate objective at starting value." When I uncheck the Firth box, the model runs and I get output that appears reasonable. Couple questions:<BR /><BR />1) Is it essential to use the Firth bias adjusted estimates?<BR />2) Is there something that I could do to make the Firth bias adjusted estimates run? <BR /><BR />I am wondering if it might be worth trying to run the model with the profile data separated from the response and subject data. <BR /><BR />Any advice would be appreciated. <BR /><BR />Thanks. Fri, 25 Mar 2011 15:12:07 GMT https://community.jmp.com/t5/Discussions/Firth-bias-adjusted-estimates/m-p/3129#M3129 2011-03-25T15:12:07Z