【已解决 TypeError: barplot() takes from 0 to 1 positional arguments but 2 were given】-Toy模板网

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已解决 TypeError: barplot() takes from 0 to 1 positional arguments but 2 were given

1.先放代码：

sns.barplot(features_df['特征'][:20],features_df['重要性'][:20]) # 柱形图

报错信息：
【已解决 TypeError: barplot() takes from 0 to 1 positional arguments but 2 were given】,python,pandas
解决方案：代码更改如下

sns.barplot(x=features_df['特征'][:20],y=features_df['重要性'][:20]) # 柱形图

此时不会报错了：
【已解决 TypeError: barplot() takes from 0 to 1 positional arguments but 2 were given】,python,pandas

2.代码更改原理：简要了解一下函数用法

sns.barplot()函数：根据特征重要程度进行排序并输出
先看sns.barplot的官方用法：
【已解决 TypeError: barplot() takes from 0 to 1 positional arguments but 2 were given】,python,pandas

3.函数用法实例

import seaborn as sns
import matplotlib.pyplot as plt
import pandas as pd
a = pd.DataFrame({"feature": [19, 36, 28, 15, 2, 9, 45, 73, 3, 18, 66, 89]})
b=pd.DataFrame({"importance":[15396,  7812,  4795,  3857,  2966,  1984,  1735,  1266,  1128, 849, 6831, 2637]})
df=pd.concat([a,b],axis=1)
df=df.sort_values(by='importance',ascending=False)
df=df[:10]
print(df)
sns.barplot(x="importance",y="feature",data=df,orient="h",order=df["feature"])

结果：
【已解决 TypeError: barplot() takes from 0 to 1 positional arguments but 2 were given】,python,pandas
总结：不可以对坐标写入的xy省略。横纵坐标轴的写入需要按照官方文档来，不能随意更改和省略。文章来源地址https://www.toymoban.com/news/detail-604557.html

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