decision-tree-classifier

Decision tree classifier implementation in C++
git clone git://git.laack.co/decision-tree-classifier.git
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Testing.py (1025B)


      1 
      2 from sklearn.datasets import load_iris
      3 from sklearn.model_selection import train_test_split
      4 from Podtc import PseudoOptimalDecisionTreeClassifier
      5 from sklearn.metrics import accuracy_score
      6 import numpy as np
      7 
      8 accuracies = []
      9 
     10 for i in range(1, 10):
     11     # Load Iris dataset
     12     iris = load_iris()
     13     X = iris.data
     14     y = iris.target
     15 
     16     # Split the dataset into training and testing sets
     17     X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)
     18 
     19     # Train and evaluate the PseudoOptimalDecisionTreeClassifier
     20     classifier = PseudoOptimalDecisionTreeClassifier(
     21         proportionToTrainOn=1, 
     22         proportionToValidateSplits=1, 
     23         proportionOfDimsToTrainOn=1, 
     24         maxDepth=i
     25     )
     26 
     27     classifier.fit(X_train, y_train)
     28     y_pred = classifier.predict(X_test)
     29 
     30     print("MY ACCURACY (PseudoOptimalDecisionTreeClassifier):")
     31     accuracies.append(accuracy_score(y_true=y_test, y_pred=y_pred))
     32     print(accuracy_score(y_true=y_test, y_pred=y_pred))
     33 
     34 print(accuracies)