- #1

- 7,328

- 11,174

A couple of questions, please:

1) Say df is a dataframe in Python Pandas, and I select a specific column from df:

Y=df[column].values.

What kind of data structure is Y?

2)

I want to find the sum of two numbers:

Def Sum(a=0,b=0):

return a+b

If I want to find a sum over sum data structure ( say a list) , how can

I define sum, i.e., how to extend it from a binary operation? Should I use

recursion and/or some 'for' clause?

Thanks.