pandas df row count
df = pd.DataFrame({"Letters": ["a", "b", "c"], "Numbers": [1, 2, 3]})
index = df.index
number_of_rows = len(index)
pandas df row count
df = pd.DataFrame({"Letters": ["a", "b", "c"], "Numbers": [1, 2, 3]})
index = df.index
number_of_rows = len(index)
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]
python - count total numeber of row in a dataframe
# Option 1
df.A.count()
# Option 2
df['A'].count()
# Option 3
number_of_rows = len(df)
# Option 4
df.count()
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