Answers for "count number of columns"

pandas number of columns

### first method ###
len(df.columns)
### second method ###
df.shape[1]

Posted by: Guest on September-24-2021

python count variable and put the count in a column of data frame

df['freq'] = df.groupby('myvar')['myvar'].transform('count')

Posted by: Guest on June-19-2020

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