- You can only plot an ROC in cases where you can adjust some parameter that changes the sens/spec. If you algorithm has such a parameter, you can run your algorithm with a range of settings. The resulting pairs of sens/spec form your ROC curve.
- What presentation is meaningful depends on your subject.
Need help with the Specificity and sensitivity data
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I have image segmentation results with me. I could also compare the result of algorithm with manual segmentation. Through this I could calculate TP, TN, FP and FN for 30 images.
1. Is it possible to plot ROC using this data? 2. How to present this data in a meaningful manner?
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Rik
am 26 Mär. 2018
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