/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

2 votes256 views1 answer
Fyit download
Python
2 votes282 views1 answer
Python RuntimeWarning: overflow encountered in long_scalars
Python
4 votes310 views5 answers
AttributeError: module 'datetime' has no attribute 'now'
Python
1 vote271 views1 answer
Alarm when code finishes
Python
2 votes269 views1 answer
Hyperlinks in jupyter notebook
Python
2 votes328 views1 answer
Json dumps datetime
Python
0 vote287 views1 answer
Set application taskbar icon
Python
0 vote277 views1 answer
Python program to assess if a file is closed or not
Python
1 vote244 views1 answer
2d dictionary in python
Python
2 votes294 views1 answer
Tf.reduce_sum()
Python