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How to determine the order of bars in a matplotlib bar chart?
To determine the order of bars in a bar chart in matplotlib, we can take the following steps −
- Set the figure size and adjust the padding between and around the subplots.
- Make a dataframe, df, of two-dimensional, size-mutable, potentially heterogeneous tabular data.
- Add a subplot to the current figure.
- Make a bar plot with dataframe, df.
- Add a subplot to the current figure.
- Create another dataframe, df_sorted, by column marks.
- Make a bar plot with df_sorted.
- To display the figure, use show() method.
Example
import pandas as pd
from matplotlib import pyplot as plt
plt.rcParams["figure.figsize"] = [7.00, 3.50]
plt.rcParams["figure.autolayout"] = True
df = pd.DataFrame(
dict(
names=['John', 'James', 'David', 'Gary', 'Watson'],
marks=[23, 34, 30, 19, 20]
)
)
plt.subplot(121)
plt.bar('names', 'marks', data=df, color='green')
plt.subplot(122)
df_sorted = df.sort_values('marks')
plt.bar('names', 'marks', data=df_sorted, color='blue')
plt.show()Output
It will produce the following output
Updated on: 20-Sep-2021
5K+ Views
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