/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 vote203 views2 answers
Leer fichero de texto con columnas como diccionario python
Python
0 vote236 views2 answers
AttributeError: 'Series' object has no attribute 'toarray'
Python
0 vote199 views1 answer
Python increment char a to b az to ba
Python
0 vote210 views1 answer
Workbook select sheet python
Python
0 vote220 views1 answer
Python Ordered dict to dict
Python
0 vote204 views1 answer
List alpha numeric
Python
20 votes262 views4 answers
Button tkinter
Python
12 votes203 views4 answers
Age calculator in python
Python
-1 vote208 views2 answers
Python path absolute
Python
9 votes209 views1 answer
Comment out a block in python
Python