WebMar 6, 2024 · The truth value of a Series is ambiguous ... 例如,假设我们有一个序列,其中包含两个布尔值: ``` s = pd.Series([True, False]) ``` 如果我们尝试对这个序列求值,将会得到一个错误,因为序列的真值是模糊的: ``` if s: ...
pandas.Dataframe报错The truth value of a Series is ambiguous.
WebAug 2, 2024 · print('fun') ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all(). Besides these 4 statements there are several python functions that hide some bool calls (like any , all , filter , …) these are normally not problematic with pandas.Series but for completeness I wanted to mention these. WebDec 13, 2024 · See Working with text data — pandas 1.5.2 documentation for how to use the contains method on a series. So you really need to study the pandas documentation for … body lotion jasmine
the value changed at i++ is never used - CSDN文库
WebMay 29, 2024 · A Series of booleans is different from a (scalar) boolean, and they cannot be used interchangeably in python. You will need to deduce the Series in order to use it in a if … WebJust to add some more explanation to this statement: The exception is thrown when you want to get the bool of a pandas.Series: >>> import pandas as pd >>> x = pd.Series([1]) >>> bool(x) ValueError: The truth value of a Series is ambiguous. WebMar 13, 2024 · The truth value of a Series is ambiguous ... 例如,假设我们有一个序列,其中包含两个布尔值: ``` s = pd.Series([True, False]) ``` 如果我们尝试对这个序列求值,将会得到一个错误,因为序列的真值是模糊的: ``` if s: ... body lotion kiehls