我定义了一个如下所示的函数:
def incident_rate(substation,year,events):
age = conductor_yearly_df.loc[conductor_yearly_df['SUBSTATION']==substation,conductor_yearly_df.columns.str.contains(year)].reset_index(drop=True).values[0][0]
length = conductor_yearly_df.loc[conductor_yearly_df['SUBSTATION']==substation,conductor_yearly_df.columns.str.contains(year)].reset_index(drop=True).values[0][1]
temp = events / (age * length)
return temp
当我在代码中调用该函数时(例如:incident_rate('WB',2019,6),它会抛出以下错误:
TypeError: first argument must be string or compiled pattern
我不确定我在哪里犯了错误。谁能指导我如何解决错误?
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