Count of elements in lists within pandas data frame

Question

I need to get the frequency of each element in a list when the list is in a pandas data frame columns

In data:

din=pd.DataFrame({\'x\':[[\'a\',\'b\',\'c         


        

Answer 1

You can also have an one liner like this:

df = pd.Series(sum([item for item in din.x], [])).value_counts()