/Python/Pandas apply check for string length in column

Pandas apply check for string length in column

#The *mask* variable is a dataframe of booleans, giving you True or False for the selected condition
mask = df[['A','B']].applymap(lambda x: len(str(x)) == 10)

#Here you can just use the mask to filter your rows, using the method *.all()* to filter only rows that are all True, but you could also use the *.any()* method for other needs
df = df[mask.all(axis=1)]

Source: stackoverflow.com

Pandas apply check for string length in column

df=pd.read_csv('filex.csv')
df.A=df.A.apply(lambda x: x if len(x)== 10 else np.nan)
df.B=df.B.apply(lambda x: x if len(x)== 10 else np.nan)
df=df.dropna(subset=['A','B'], how='any')

Source: stackoverflow.com

Similar codes

0 vote187 views1 answer
Python3 list directories
Python
3 votes120 views1 answer
Binomial variance
Python
5 votes177 views3 answers
How to save unzipped files in python
Python
3 votes173 views1 answer
Django session expire time
Python
0 vote164 views1 answer
Roblox api python
Python
4 votes168 views4 answers
Pandas groupby sum
Python
0 vote129 views1 answer
Part of list into dataframe
Python
-1 vote133 views1 answer
Import url
Python
0 vote164 views10 answers
Convert python to c++ online
Python
1 vote171 views2 answers
Cool python imports
Python