Exact match in Pandas Series after splitting by character

Question

Given the following Pandas Series:

import pandas as pd
series = pd.Series(['red', 'green,blue', 'yellow', 'greenish', 'blueish'])

How to find the index (or boolean) where, after splitting each element by the character ‘,’, there is an exact match for any given string?

For example, the strings ‘green’ and ‘blue’ should both have a unique match at index 1.

Asked By: David

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Source

Answer 1

I would do it following way

import pandas as pd
series = pd.Series(['red', 'green,blue', 'yellow', 'greenish', 'blueish'])
green = series.str.split(',').apply(lambda x:"green" in x)
print(green)

gives output

0    False
1     True
2    False
3    False
4    False
dtype: bool

Explanation: str.split at , to get lists then use apply and lambda to check if list contains "green".

Answered By: Daweo

Exact match in Pandas Series after splitting by character

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