count by column value pandas code example
Example 1: pandas get count of column
df['column_name'].value_counts()
Example 2: pandas count values by column
df = pd.DataFrame({'a':list('abssbab')})
df.groupby('a').count()
df['column_name'].value_counts()
df = pd.DataFrame({'a':list('abssbab')})
df.groupby('a').count()