Answers for "dataframe.count() to list"

pandas count rows with value

len(df[df['score'] == 1.0])

Posted by: Guest on April-12-2020

pandas count number of rows with value

In [37]:
df = pd.DataFrame({'a':list('abssbab')})
df.groupby('a').count()

Out[37]:

   a
a   
a  2
b  3
s  2

[3 rows x 1 columns]

Posted by: Guest on October-25-2020

pandas count

>>> df.set_index(["Person", "Single"]).count(level="Person")
        Age
Person
John      2
Lewis     1
Myla      1

Posted by: Guest on February-24-2020

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