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Questions - roc

How to make ROC Curves with survey objects

I'm trying to build a ROC curve with data from a survey object from surveyr. But the pROC function cannot coerce a survey object back to a data frame for the analyses and it doen't work with the surve...
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João Camargos

r

survey

roc

Votes: 0

Answers: 1

Latest Answer

The pROC::roc function doesn't accept sampling weights, so it's not just a matter of data formats -- you can extract a data frame from a survey object with model.frame, but roc still won't be doing a ...
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Thomas Lumley

How number of thresholds is defined in sklearn roc_curve function?

When I used sklearn function roc_curve on my data with logistic regression model: roc_curve(y_test, predictions_test) I got this result: (array([0. , 0.1, 1. ]), array([0. , 0.865, 1. ]), array([...
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Ir8_mind

python

python-3.x

scikit-learn

roc

Votes: 0

Answers: 1

Latest Answer

As you might see from the source code (within the call to _binary_clf_curve(), in turn called by roc_curve() here) the number of thresholds is actually defined by the number of distinct predictions_te...
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amiola

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