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Binary classification evaluation in R via ROCR - Brendan O'Connor's Blog
So there are a zillion ways to evaluate a binary classifier. Accuracy? Accuracy on different item types (sens, spec)? Accuracy on different classifier decisions (prec, npv)? And worse, over the years every field has given these metrics different names. Signal detection, bioinformatics, medicine, statistics, machine learning, and more I’m sure. But in R, there’s the excellent ROCR package to compute and visualize all the different metrics.
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So there are a zillion ways to evaluate a binary classifier. Accuracy? Accuracy on different item types (sens, spec)? Accuracy on different classifier decisions (prec, npv)? And worse, over the years every field has given these metrics different names. Signal detection, bioinformatics, medicine, statistics, machine learning, and more I’m sure. But in R, there’s the excellent ROCR package to compute and visualize all the different metrics.
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