使用SIC代码在Python中进行行业分类

如何解决使用SIC代码在Python中进行行业分类

我试图根据观察的相应SIC代码（变量：'sich'）在我的数据帧中准确获得行业分类（变量：行业）的另一列。我收到错误“ ValueError：系列的真值不明确。请使用a.empty，a.bool（），a.item（），a.any（）或a.all（）。”并且如果我将'and'更改为'＆'，它会给我“ TypeError：无法使用dtyped [float64]数组和类型为[bool]的标量执行'rand_'”目前，我正在尝试执行此代码：

#industry classification based on SIC code
if comp_funda['sich'] >= 1000 and comp_funda['sich'] < 1300:
    comp_funda['industry']=1
elif comp_funda['sich'] > 1399 and comp_funda['sich'] < 2000:
    comp_funda['industry']=1
elif comp_funda['sich'] >= 2000 and comp_funda['sich'] <= 2111:
    comp_funda['industry']=2
elif comp_funda['sich'] >= 2200 and comp_funda['sich'] <= 2780:
    comp_funda['industry']=3
elif comp_funda['sich'] >= 2800 and comp_funda['sich'] <= 2824:
    comp_funda['industry']=4
elif comp_funda['sich'] >= 2840 and comp_funda['sich'] <= 2899:
    comp_funda['industry']=4
elif comp_funda['sich'] >= 2830 and comp_funda['sich'] <= 2836:
    comp_funda['industry']=5
elif comp_funda['sich'] >= 2900 and comp_funda['sich'] <= 2999:
    comp_funda['industry']=6
elif comp_funda['sich'] >= 1300 and comp_funda['sich'] <= 1399:
    comp_funda['industry']=6
elif comp_funda['sich'] >= 3000 and comp_funda['sich'] < 3570:
    comp_funda['industry']=7
elif comp_funda['sich'] > 3579 and comp_funda['sich'] < 3670:
    comp_funda['industry']=7
elif comp_funda['sich'] > 3679 and comp_funda['sich'] <= 3999:
    comp_funda['industry']=7
elif comp_funda['sich'] >= 7370 and comp_funda['sich'] <= 7379:
    comp_funda['industry']=8
elif comp_funda['sich'] >= 3570 and comp_funda['sich'] <= 3579:
    comp_funda['industry']=8
elif comp_funda['sich'] >= 3670 and comp_funda['sich'] <= 3679:
    comp_funda['industry']=8
elif comp_funda['sich'] >= 4000 and comp_funda['sich'] <= 4899:
    comp_funda['industry']=9
elif comp_funda['sich'] >= 4900 and comp_funda['sich'] <= 4999:
    comp_funda['industry']=10
elif comp_funda['sich'] >= 5000 and comp_funda['sich'] <= 5999:
    comp_funda['industry']=11
elif comp_funda['sich'] >= 7000 and comp_funda['sich'] < 7370:
    comp_funda['industry']=12
elif comp_funda['sich'] > 7379 and comp_funda['sich'] <= 8999:
    comp_funda['industry']=12

非常感谢您解决此问题的任何帮助！提前谢谢大家， 卢卡！