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Questions - auc

LGBMClassifier roc_auc problem using gridSearchCV and early_stopping via BaseEstimator

i want to integrate an LGBMClassifier to existing code. the code call fit(X,y), while LGBMClassifier will need fit(X, y, eval_set, callbacks, eval_metric). i'm trying to encapsulate eval_set, callback...
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silvyan

scikit-learn

auc

gridsearchcv

early-stopping

Votes: 0

Answers: 1

Latest Answer

You can just set an attribute classes_ for EarlyStopEstimator to delegate out to the underlying estimator. Either def fit(self, X, y): ... self.estimator.fit(X_train, y_train, **p...
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Ben Reiniger

My data can be approximated with Normal mixture. How can I find the reasons and explain this behaviour?

I use DeLonge method to compare two ROC AUCS. The result of it is Z-score. Both ROC AUCs obtained from LDA (linear discriminant analysis) from sklearn package. The first one uses eigen solver inside L...
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Arzental

python

normal-distribution

auc

mixture-model

linear-discriminant

Votes: 0

Answers: 0

changing null hypothesis value for sample size calculation of a single AUC

I am trying to get the sample size for a single AUC using power.roc.test in the pROC package. For example, the expected AUC is 0.97 (alternative hypothesis) and the value I am comparing to is 0.95 (nu...
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slee

r

roc

auc

sample-size

Votes: 0

Answers: 2

Latest Answer

I have the exact same question. It is possible to compute a sample size using with two roc objects with power.roc.test(), e.g. power.roc.test(roc1, roc2, power = 0.8) although I want to compute a sam...
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Wombat

R: linetype and color manual not showing in ggplot legend

I'm plotting the following data (stored as data.frame object) as ROC-AUC plot using ggplot. I want to display each data in unique linetype and color and arrange them into a legend inside the plot, so ...
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Chris T.

ggplot2

legend

roc

auc

Votes: 0

Answers: 1

Latest Answer

If this is only happening in your plot panel, try ggsave for example. In my plot panel, it looked the same as in your picture: However, after saving it in a folder, I get colors and linetypes:
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Gnueghoidune

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