plot year on year values in a single plot in matplotlib in python

To plot year on year values in a single plot using Matplotlib in Python, you can follow these steps:

Import the necessary libraries:


main.py
import matplotlib.pyplot as plt
import datetime
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Create your data:


main.py
# Example data for year on year values
years = [2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020]
values = [4, 7, 9, 11, 13, 15, 14, 12, 10, 8, 6]
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Convert the years to datetime objects:


main.py
dates = [datetime.datetime(year, 1, 1) for year in years]
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Plot the data:


main.py
plt.plot(dates, values)
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Customize the plot as needed:


main.py
plt.xlabel('Year')
plt.ylabel('Values')
plt.title('Year on Year Values')
plt.grid(True)
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Display the plot:


main.py
plt.show()
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Here's the complete example code:


main.py
import matplotlib.pyplot as plt
import datetime

# Example data for year on year values
years = [2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020]
values = [4, 7, 9, 11, 13, 15, 14, 12, 10, 8, 6]

dates = [datetime.datetime(year, 1, 1) for year in years]

plt.plot(dates, values)

plt.xlabel('Year')
plt.ylabel('Values')
plt.title('Year on Year Values')
plt.grid(True)

plt.show()
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By converting the years to datetime objects, we can have the x-axis represent the years in a more meaningful way rather than just discrete values. The plt.plot function is used to create the line plot, and then you can customize the plot by adding labels, titles, and a grid. Finally, plt.show() is used to display the plot.

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