Answers for "pandas count how many rows have a specific value"

1

pandas count specific value in column

(df[education]=='9th').sum()
Posted by: Guest on November-28-2020
1

pandas count rows with value

len(df[df['score'] == 1.0])
Posted by: Guest on April-12-2020
0

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
0

pandas count occurrences of certain value in row

print df
  col1 education
0    a       9th
1    b       9th
2    c       8th

print df.education == '9th'
0     True
1     True
2    False
Name: education, dtype: bool

print df[df.education == '9th']
  col1 education
0    a       9th
1    b       9th

print df[df.education == '9th'].shape[0]
2
print len(df[df['education'] == '9th'])
2
Posted by: Guest on May-29-2020

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