我想为2个表做一个动态模糊逻辑连接。我的意思是动态允许参数指定允许两个表加入的变量。 下面的代码说明是静态代码的以下链接修改后的版本: Python Pandas fuzzy merge/match with duplicates蟒蛇动态模糊逻辑加入
我编下面的动态代码:
import pandas as pd
import datetime
from fuzzywuzzy import fuzz
import difflib
donors = pd.DataFrame({"name": pd.Series(["John Doe","John Doe","Tom Smith","Jane Doe","Jane Doe","Kat test"]), "Email": pd.Series(['[email protected]','[email protected]','[email protected]','[email protected]','[email protected]','[email protected]']),"Date": (["27/03/2013 10:00:00 AM","1/03/2013 10:39:00 AM","2/03/2013 10:39:00 AM","3/03/2013 10:39:00 AM","4/03/2013 10:39:00 AM","27/03/2013 10:39:00 AM"])})
fundraisers = pd.DataFrame({"name": pd.Series(["John Doe","John Doe","Kathy test","Tes Ester", "Jane Doe"]),"Email": pd.Series(['[email protected]','[email protected]','[email protected]','[email protected]','[email protected]']),"Date": pd.Series(["2/03/2013 10:39:00 AM","27/03/2013 11:39:00 AM","3/03/2013 10:39:00 AM","4/03/2013 10:40:00 AM","27/03/2013 10:39:00 AM"])})
donors["Date"] = pd.to_datetime(donors["Date"], dayfirst=True)
fundraisers["Date"] = pd.to_datetime(donors["Date"], dayfirst=True)
donors["code"] = donors.apply(lambda row: str(row['name'])+' '+str(row['Email']), axis=1)
idx = donors.groupby('code')["Date"].transform(min) == donors['Date']
donors = donors[idx].reset_index().drop('index',1)
def get_donors_v1(fund_var,don_var, don_tab,row=None):
d = don_tab.apply(lambda x: fuzz.ratio(x["%s" % don_var], 'row["%s" %fund_var]') * 2, axis=1)
d = d[d >= 75]
if len(d) == 0:
v = ['']*3
else:
v = don_tab.ix[d.idxmax(), ["%s"% don_var ,'Email','Date']].values
return pd.Series(v, index=['donor name', 'donor email', 'donor date'])
trial=pd.concat((fundraisers, fundraisers.apply(get_donors_v1(fund_var="name",don_var="name",don_tab=donors), axis=1)), axis=1)
我收到以下错误:
TypeError: get_donors_v1() takes exactly 4 arguments (3 given)
我应该将功能替换为:
get_donors_v1(row=None,fund_var,don_var, don_tab)
然后我得到以下错误:
TypeError: ("'NoneType' object has no attribute 'getitem'", u'occurred at index 0')
请帮助。
我认为默认值必须放在最后,所以get_donors_v1(fund_var,don_var,don_tab,row = None)可以做到这一点吗? – Guido
你好Guido,我试过了。没有帮助:( – Seb