• Set the figure size and adjust the padding between and around the subplots.
  • Make a data frame, df, of two-dimens">

    How to sort bars in increasing order in a bar chart in matplotlib?



    To sort bars in increasing order 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 data frame, df, of two-dimensional, size-mutable, potentially heterogeneous tabular data.
    • Add a subplot to the current figure.
    • Make a bar plot with the dataframe, df.
    • Add a subplot to the current figure.
    • Make a df_sorted by a 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"] = [7.50, 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='red')
    
    plt.subplot(122)
    df_sorted = df.sort_values('marks')
    plt.bar('names', 'marks', data=df_sorted, color='orange')
    
    plt.show()

    Output

    It will produce the following output

    Notice the bar chart on the right. The bars are sorted in the increasing order of their values.

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