Question

consider the dataframe 'df' what is the result of the following operation... df['symbolling'] = df['symbolling'] +1:

Answer 1

Answer:

This creates a `DataFrame``: C D A B foo one 0 0 bar one 1 2 foo two 2 4 bar three 3 6 foo three 4 8 bar two 5 10 foo four 6 12 three 7 14 Problem: Why do you get a KeyError: 'foo' when trying to select using df['foo']? Similarly, df['foo', 'one'] and df['foo']['one'].

Answer 2

Explanation:

$\Large\bf{\underline{\underbrace{\qquad Question:-}}}$

$\sf{\bigg (\dfrac{1}{3} \bigg)\ - \bigg (\dfrac{2}{1} \bigg)}$