topic Re: How to plot confidence interval around prediction formula? in Discussions

How to plot confidence interval around prediction formula?

MetaLizard62080 — Sun, 27 Oct 2024 14:45:49 GMT

Trying to determine how to graph the confidence interval (upper and lower) around the prediction formula that I have exported to the data table via "Save Columns". I reduced my model, and saved the prediction formula, and the mean confidence interval to the data table.

When I use graph --> Profiler and then place the prediction and lower and upper 95% mean columns, they are plotted separately as Ys rather than as confidence intervals around the prediction formula.

Any suggestions?

Re: How to plot confidence interval around prediction formula?

hogi — Sun, 27 Oct 2024 16:49:42 GMT

Which version of JMP?

with JMP18, it got very easy: the confidence intervals are saved as hidden columns - with a link to the prediction formula.

When you use the prediction fomula in the profiler, the confidence intervals are added automatically:

Re: How to plot confidence interval around prediction formula?

Dan_Obermiller — Mon, 28 Oct 2024 03:10:09 GMT

If you are using a version prior to version 18, save the prediction formula (as you have done) and then save the StdErr Pred Formula (make sure that it is the formula column). When you choose Graph > Profiler, put the prediction formula and the StdErr Pred Formula in as Y's. JMP will ask if it should use the Std. Err column to form the intervals or plot it separately. Answer YES, that it should be used for the intervals.