- import pandas as pd
- import matplotlib.pyplot as plt
- import numpy as np
- %matplotlib inline
- #导入数据
- data=pd.read_csv("creditcard.csv")
- print(data.head())
- #作图
- count_classes=pd.value_counts(data["Class"],sort=True).sort_index()
- count_classes.plot(kind="bar")
- plt.xlabel("Class")
- plt.ylabel("Frequency")
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