/Python/How to find number of categories in python

How to find number of categories in python

from collections import Counter
df = pd.DataFrame({'a':['apple','apple','banana','peach', 'banana', 'apple']})

print Counter(df['a'])
>> Counter({'apple': 3, 'banana': 2, 'peach': 1})

Source: stackoverflow.com

Similar codes

16 votes265 views1 answer
Python reload function in shell
Python
8 votes270 views2 answers
Loop through list backwards python
Python
0 vote247 views1 answer
Change title size matplotlib
Python
0 vote243 views1 answer
Pandas set column to value using mask
Python
0 vote282 views1 answer
Python How to make your application check for updates
Python
2 votes295 views2 answers
Run python script every hour
Python
0 vote257 views1 answer
Pandas how to start read csv at a certain row
Python
2 votes250 views1 answer
Python class get attribute by name
Python
-1 vote282 views1 answer
Email validation using django
Python Django
1 vote256 views1 answer
Sort python nested list according to a value
Python