pandas number of columns
### first method ###
len(df.columns)
### second method ###
df.shape[1]pandas number of columns
### first method ###
len(df.columns)
### second method ###
df.shape[1]count elements in columns pandas
df['COL_NAME'].count(axis=1)python count variable and put the count in a column of data frame
df['freq'] = df.groupby('myvar')['myvar'].transform('count')Copyright © 2021 Codeinu
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