Improving ROC curves - Youden index

Discuss the jamovi platform, possible improvements, etc.

by dr_Primus » Sat Mar 24, 2018 12:05 pm

First of all. Thanks for including ROC curves into jamovi... It is really handy and easy to use.
Here are some suggestions:

- display multiple curves on the same graph (i dabbled with pROC in R and made a script which I adjust as needed - if you would like me to I can upload it here)

-it would be nice to have the option to have curves in same colour but different shape (full, dotted, dashed, dot-dash-dot and so on)

-calculate the so called Youden index which will show the optimal cutoff value (best combination of specificity and sensitivity)

Thanks :)
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