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Commit de478bf

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driscollisdriscollis
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Add more graph examples
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‎chapter40_graphs/bar_chart.title.py‎

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# bar_chart_title.py
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import matplotlib.pyplot as plt
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def bar_chart(numbers, labels, pos):
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plt.bar(pos, [4, 5, 6, 3], color='green')
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plt.bar(pos, numbers, color='blue')
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plt.xticks(ticks=pos, labels=labels)
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plt.title('Gas Used in Various Vehicles')
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plt.xlabel('Vehicle Types')
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plt.ylabel('Number of Vehicles')
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plt.show()
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if __name__ == '__main__':
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numbers = [2, 1, 4, 6]
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labels = ['Electric', 'Solar', 'Diesel', 'Unleaded']
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pos = list(range(4))
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bar_chart(numbers, labels, pos)
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‎chapter40_graphs/bar_chart_labels.py‎

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# bar_chart_labels.py
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import matplotlib.pyplot as plt
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def bar_chart(numbers, labels, pos):
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plt.bar(pos, numbers, color='blue')
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plt.xticks(ticks=pos, labels=labels)
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plt.xlabel('Vehicle Types')
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plt.ylabel('Number of Vehicles')
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plt.show()
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if __name__ == '__main__':
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numbers = [2, 1, 4, 6]
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labels = ['Electric', 'Solar', 'Diesel', 'Unleaded']
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pos = list(range(4))
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bar_chart(numbers, labels, pos)
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‎chapter40_graphs/bar_chart_legend.py‎

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# bar_chart_legend.py
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import matplotlib.pyplot as plt
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def bar_chart(numbers, labels, pos):
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plt.bar(pos, [4, 5, 6, 3], color='green')
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plt.bar(pos, numbers, color='blue')
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plt.xticks(ticks=pos, labels=labels)
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plt.xlabel('Vehicle Types')
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plt.ylabel('Number of Vehicles')
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plt.title('Gas Used in Various Vehicles')
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plt.legend(['First Label', 'Second Label'],
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loc='upper left')
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plt.show()
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if __name__ == '__main__':
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numbers = [2, 1, 4, 6]
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labels = ['Electric', 'Solar', 'Diesel', 'Unleaded']
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pos = list(range(4))
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bar_chart(numbers, labels, pos)
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‎chapter40_graphs/multiple_figures.py‎

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# multiple_figures.py
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import matplotlib.pyplot as plt
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def line_plot(numbers, numbers2):
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first_plot = plt.figure(1)
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plt.plot(numbers)
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second_plot = plt.figure(2)
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plt.plot(numbers2)
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plt.show()
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if __name__ == '__main__':
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numbers = [2, 4, 1, 6]
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more_numbers = [5, 1, 10, 3]
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line_plot(numbers, more_numbers)
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‎chapter40_graphs/multiple_plots.py‎

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# multiple_plots.py
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import matplotlib.pyplot as plt
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import numpy as np
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def multiple_plots():
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# Some example data to display
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x = np.linspace(0, 2 * np.pi, 400)
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y = np.sin(x ** 2)
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fig, axs = plt.subplots(2)
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fig.suptitle('Vertically stacked subplots')
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axs[0].plot(x, y)
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axs[1].plot(x, -y)
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plt.show()
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if __name__ == '__main__':
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multiple_plots()
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‎chapter40_graphs/multiple_plots2.py‎

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# multiple_plots2.py
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import matplotlib.pyplot as plt
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def multiple_plots():
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numbers = [2, 4, 1, 6]
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more_numbers = [5, 1, 10, 3]
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fig, axs = plt.subplots(2)
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fig.suptitle('Vertically stacked subplots')
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axs[0].plot(numbers)
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axs[1].plot(more_numbers)
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plt.show()
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if __name__ == '__main__':
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multiple_plots()
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‎chapter40_graphs/pie_chart_fancy.py‎

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# pie_chart.py
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import matplotlib.pyplot as plt
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def pie_chart():
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numbers = [40, 35, 15, 10]
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labels = ['Python', 'Ruby', 'C++', 'PHP']
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# Explode the first slice (Python)
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explode = (0.1, 0, 0, 0)
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fig1, ax1 = plt.subplots()
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ax1.pie(numbers, explode=explode, labels=labels,
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shadow=True, startangle=90,
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autopct='%1.1f%%')
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ax1.axis('equal')
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plt.show()
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if __name__ == '__main__':
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pie_chart()
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‎chapter40_graphs/pie_chart_plain.py‎

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# pie_chart_plain.py
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import matplotlib.pyplot as plt
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def pie_chart():
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numbers = [40, 35, 15, 10]
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labels = ['Python', 'Ruby', 'C++', 'PHP']
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fig1, ax1 = plt.subplots()
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ax1.pie(numbers, labels=labels)
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plt.show()
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if __name__ == '__main__':
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pie_chart()

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