Question

我试图将列替换为基于条件的值（基本上，我试图在此列中创建索引类以进行多项逻辑回归）

我尝试使用DataFrame.loc，但总是遇到相同的错误

任何人都可以帮助我解决它吗？

data.loc[(data['Freq_Rech'] < 3), 'Freq_Rech'] = 1
data.loc[(data['Freq_Rech'] >= 3) & (data['Freq_Rech'] < 6), 'Freq_Rech'] = 3
data.loc[data['Freq_Rech'] >= 6 & data['Freq_Rech'] < 10, 'Freq_Rech'] = 6
data.loc[data['Freq_Rech'] >= 10 & data['Freq_Rech'] < 20, 'Freq_Rech'] = 10
data.loc[data['Freq_Rech'] >= 20, 'Freq_Rech'] = 20

错误是：无法将类型为[bool]的标量的类型为[float64]的数组进行比较

Answer 1

您快到了。只需确保在布尔条件周围有正确的语法即可：

data.loc[(data['Freq_Rech'] < 3), 'Freq_Rech'] = 1
data.loc[(data['Freq_Rech'] >= 3) & (data['Freq_Rech'] < 6), 'Freq_Rech'] = 3
data.loc[(data['Freq_Rech'] >= 6) & (data['Freq_Rech'] < 10), 'Freq_Rech'] = 6
data.loc[(data['Freq_Rech'] >= 10) & (data['Freq_Rech'] < 20), 'Freq_Rech'] = 10
data.loc[(data['Freq_Rech'] >= 20), 'Freq_Rech'] = 20

我无法根据条件替换列上的值

1 个答案: