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The Supervised Learning Workshop

You're reading from   The Supervised Learning Workshop Predict outcomes from data by building your own powerful predictive models with machine learning in Python

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Product type Paperback
Published in Feb 2020
Publisher Packt
ISBN-13 9781800209046
Length 532 pages
Edition 2nd Edition
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Authors (4):
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Blaine Bateman Blaine Bateman
Author Profile Icon Blaine Bateman
Blaine Bateman
Ashish Ranjan Jha Ashish Ranjan Jha
Author Profile Icon Ashish Ranjan Jha
Ashish Ranjan Jha
Ishita Mathur Ishita Mathur
Author Profile Icon Ishita Mathur
Ishita Mathur
Benjamin Johnston Benjamin Johnston
Author Profile Icon Benjamin Johnston
Benjamin Johnston
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Toc

7. Model Evaluation

Activity 7.01: Final Test Project

  1. Import the relevant libraries:
    import pandas as pd 
    import numpy as np 
    import json 
    %matplotlib inline 
    import matplotlib.pyplot as plt 
    from sklearn.preprocessing import OneHotEncoder 
    from sklearn.model_selection import RandomizedSearchCV, train_test_split
    from sklearn.ensemble import GradientBoostingClassifier 
    from sklearn.metrics import (accuracy_score, precision_score, \
    recall_score, confusion_matrix, precision_recall_curve)
  2. Read the breast-cancer-data.csv dataset:
    data = pd.read_csv('../Datasets/breast-cancer-data.csv')
    data.info() 
  3. Let's separate the input data (X) and the target (y):
    X = data.drop(columns=['diagnosis'])
    y = data['diagnosis'].map({'malignant': 1, 'benign': 0}.get).values
  4. Split the dataset into training and test sets:
    X_train, X_test, \
    y_train, y_test = train_test_split(X, y, \
             ...
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