Question $1\mathrm{.}4.$ Create a DataFrame named legendary$\_$pokemon, indexed by 'type' and

having one column, called 'num$\_$legendary' $,$ that contains the number of legendary

Pok$$mon of each 'type'. Only include 'type's with at least one legendary Pok$$mon of

that 'type'.

Hint: You will need to drop and rename columns. Instead of using $.$ drop, you may want to

use $.$ get with a list containing the name of a single column.

In $[19]$:

legendary$\_$pokemon $=$ bpd$.$read$\_$csv$(\text{'}$data$/$pokedex$.$csv$\text{'}).$set$\_$index$(\text{'}$type$\text{'})$

legendary$\_$pokemon