Class: Rumale::EvaluationMeasure::Accuracy
- Inherits:
-
Object
- Object
- Rumale::EvaluationMeasure::Accuracy
- Includes:
- Base::Evaluator
- Defined in:
- lib/rumale/evaluation_measure/accuracy.rb
Overview
Accuracy is a class that calculates the accuracy of classifier from the predicted labels.
Instance Method Summary collapse
-
#score(y_true, y_pred) ⇒ Float
Calculate mean accuracy.
Instance Method Details
#score(y_true, y_pred) ⇒ Float
Calculate mean accuracy.
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# File 'lib/rumale/evaluation_measure/accuracy.rb', line 21 def score(y_true, y_pred) check_label_array(y_true) check_label_array(y_pred) (y_true.to_a.map.with_index { |label, n| label == y_pred[n] ? 1 : 0 }).inject(:+) / y_true.size.to_f end |