Adding formula to ternary plot gives me 'Mixture sum is not consistent' alert
Aug 1, 2019 9:23 AM(699 views)
I have a mixture design experiment with results as pass or fail (0 = pass, 1 = fail). I fit a nominal logistic model for the results, and get a pretty good fit that I would like to plot on a ternary diagram of the mixture space. I've tried using the probably formula columns from the model as the contour formula when setting up the plot, but I keep getting a "Mixture sum is not consistent" error and no contour (just a plot of the different mixtures). I can't find any information on what this alert means so that I can hopefully address it, does anyone have any experience with this error? Any suggestions on how to plot my pass/fail prediction as a contour on a ternary diagram? Thanks!
This worked! Some of my sums (generated by JMP) were 1.0000001 so I just adjusted and it let me get past the error. Now to figure out a way to plot a contour based on Prob and not Lin so I can visualize my results...