I have posted and updated version of this script to use with JMP12. The categorical platform was by-passed (due to a technical glitch) in favor of the categorical platform for the 2x2 table and graphic which is now a mosaic plot.
The IVD Performance Add-In was designed for quick reporting of diagnostic test results. The output includes the common 2x2 table of results, a frequency chart, as well as the standard performance measures of a diagnostic test and their associated 95% score confidence intervals. The Add-In also supports a "by" variable. The measures include:
PPV (positive predictive value)
NPV (negative predictive value)
Positive likelihood ratio
Negative likelihood ratio
For likelihood ratio confidence intervals are based on the method in Simel, et. al.
Likelihood ratios with confidence: sample size estimation for diagnostic test studies