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Update pandas.md #1311

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Update pandas.md #1311

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4 changes: 2 additions & 2 deletions chapter_preliminaries/pandas.md
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Original file line number Diff line number Diff line change
Expand Up @@ -55,7 +55,7 @@ print(data)
```{.python .input}
#@tab all
inputs, outputs = data.iloc[:, 0:2], data.iloc[:, 2]
inputs = inputs.fillna(inputs.mean())
inputs = inputs.fillna(inputs.mean(numeric_only=True)) #更新后的pandas要求mean方法之中注明numeric_only=True，否则会报错。
print(inputs)
```

Expand All @@ -67,7 +67,7 @@ print(inputs)

```{.python .input}
#@tab all
inputs = pd.get_dummies(inputs, dummy_na=True)
inputs = pd.get_dummies(inputs, dummy_na=True, dtype=int) #如果不加参数dtype=int，则会填充布尔值True/False
print(inputs)
```

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