24 Jan Pandas – Plotting
To plot in Pandas, we need to use the plot() method and the Matplotlib library. The pyplot module from Matplotlib is also used for plotting in Pandas. The pyplot.show() is used to display the figure.
Let us see an example:
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import pandas as pd import matplotlib.pyplot as plt # Dataset data = { 'Temperature': [18, 20, 22, 19, 23, 24, 28, 26, 17, 25], 'Humidity': [32, 31, 30, 22, 17, 29, 32, 27, 20, 19], 'Wind': [12, 20, 8, 9, 30, 27, 22, 33, 37, 35], 'Precipitation':[17, 25, 20, 19, 18, 30, 28, 26, 29, 22] } df = pd.DataFrame(data) df.plot() plt.show() |
Output
Let us now see how to plot:
- Histogram
- Pie Chart
- Scatter Plot
- Area Plot
Histogram
We will create a Histogram here. Set the kind argument of the plot() method to hist. For this, we only need a single column. Let us see an example:
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import pandas as pd import matplotlib.pyplot as plt # Dataset data = { 'Temperature': [18, 20, 22, 19, 23, 24, 28, 26, 17, 25], 'Humidity': [32, 31, 30, 22, 17, 29, 32, 27, 20, 19], 'Wind': [12, 20, 8, 9, 30, 27, 22, 33, 37, 35], 'Precipitation':[17, 25, 20, 19, 18, 30, 28, 26, 29, 22] } df = pd.DataFrame(data) df["Humidity"].plot(kind = 'hist') plt.show() |
Output
Pie Chart
We will create a Pie Chart here. Use the plot.pie() method to draw a Pie Chart. Let us see an example:
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import pandas as pd import matplotlib.pyplot as plt # Dataset data = { 'Temperature': [18, 20, 22, 19, 23, 24, 28, 26, 17, 25], 'Humidity': [32, 31, 30, 22, 17, 29, 32, 27, 20, 19], 'Wind': [12, 20, 8, 9, 30, 27, 22, 33, 37, 35], 'Precipitation':[17, 25, 20, 19, 18, 30, 28, 26, 29, 22] } df = pd.DataFrame(data, index=['City1', 'City2', 'City3', 'City4', 'City5', 'City6','City7', 'City8', 'City9','City10' ]) df.plot.pie(y='Humidity') plt.show() |
Output
Scatter Plot
We will create a Scatter Plot here. Set the kind argument of the plot() method to scatter. For this, we will also set the x-axis and y-axis. Let us see an example:
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import pandas as pd import matplotlib.pyplot as plt # Dataset data = { 'Temperature': [18, 20, 22, 19, 23, 24, 28, 26, 17, 25], 'Humidity': [32, 31, 30, 22, 17, 29, 32, 27, 20, 19], 'Wind': [12, 20, 8, 9, 30, 27, 22, 33, 37, 35], 'Precipitation':[17, 25, 20, 19, 18, 30, 28, 26, 29, 22] } df = pd.DataFrame(data) df.plot(kind = 'scatter', x = 'Temperature', y = 'Humidity') plt.show() |
Output
Area Plot
We will create an Area Plot here. Use the plot.area() method to draw an Area Plot. Let us see an example. Let us see an example:
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import pandas as pd import matplotlib.pyplot as plt # Dataset data = { 'Temperature': [18, 20, 22, 19, 23, 24, 28, 26, 17, 25], 'Humidity': [32, 31, 30, 22, 17, 29, 32, 27, 20, 19], 'Wind': [12, 20, 8, 9, 30, 27, 22, 33, 37, 35], 'Precipitation':[17, 25, 20, 19, 18, 30, 28, 26, 29, 22] } df = pd.DataFrame(data) df.plot.area() plt.show() |
Output
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