Pandas:使用Levenshtein Distan查询

Question

给定以下数据集：

name;sex;city;age
john;male;newyork;20
jack;male;newyork;21
mary;female;losangeles;45
maryanne;female;losangeles;48
eric;male;san francisco;26
jenny;female;boston2;30
mattia;na;BostonDynamics;50

以及限制条件：

^{pr2}$

我的目标是得到一个list，其中有一个Levenshtein Distance，其中source就是<= max_dist。使用pandas.DataFrame.query()方法可以做到这一点吗？还是必须以不同的方式来完成？在

Answer 1

你会用不同的方式来做。在

import editdistance # first do pip install editdistance
from StringIO import StringIO

s = StringIO("""name;sex;city;age
john;male;newyork;20
jack;male;newyork;21
mary;female;losangeles;45
maryanne;female;losangeles;48
eric;male;san francisco;26
jenny;female;boston2;30
mattia;na;BostonDynamics;50""")

df = pd.read_csv(s, sep=';')

df[df.name.apply(lambda x: int(editdistance.eval(source, x)) <= 2)]

   name   sex     city  age
0  john  male  newyork   20


df[df.name.apply(lambda x: int(editdistance.eval(source, x)) <= 2)].name.tolist()

['john']