[英]Match pandas dataframe name columns to another dataframe's columns?
我對 Python 很陌生。 如何將一個文本數據框與另一個文本數據框匹配? (如果我問錯了,請編輯這個問題)
例如給定這個輸入數據:
df1 =
id Names
0 123 Simpson J.
1 456 Snoop Dogg
df2 =
Names
0 John Simpson
1 Snoop Dogg
2 S. Dogg
3 Mr Dogg
有沒有一種方法可以找到(可能使用findall
或match
,或任何 python 包),以便我可以生成帶有 id 的名稱出現的次數,這幾乎就像這個結果:
result =
id Names_appeared
0 123 1
1 456 3
尋找一個簡短的解釋和一些 URL 來幫助我理解。
這是 IanS 建議的使用模糊模糊的示例:
import pandas as pd
from fuzzywuzzy import fuzz
def fuzz_count(shortList, longList, minScore):
""" Count fuzz ratios greater than or equal to a minimum score. """
results = []
for s in shortList:
scores = [fuzz.ratio(s, l) for l in longList]
count = sum(x >= minScore for x in scores)
results.append(count)
return results
data1 = {'id': pd.Series([123, 456]),
'Names': pd.Series(['Simpson J.', 'Snoop Dogg'])}
data2 = {'Names': pd.Series(['John Simpson', 'Snoop Dogg', 'S. Dogg', 'Mr Dogg'])}
df1 = pd.DataFrame(data1)
df2 = pd.DataFrame(data2)
result = pd.DataFrame()
result['id'] = df1['id']
counts = fuzz_count(df1['Names'], df2['Names'], minScore=60) # [1, 2]
result['Names_appeared'] = counts
print(result) # id Names_appeared
# 0 123 1
# 1 456 2
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