练习

Elementwise operations on arrays

Arrays allow for efficient numerical manipulation of its elements. Let's explore element-wise mathematical operations by calculating price to earnings ratio using two arrays, prices_array and earnings_array from the previous exercise.

This price to earnings ratio, or PE ratio, is a financial indicator of the dollar amount an investor can expect to invest in a company in order to receive one dollar of that company’s earnings.

prices_array and earnings_array are available in your workspace.

说明

100 XP

Import numpy as np.
Create pe_array by dividing prices_array by earnings_array.

.css-6su6fj{-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;}练习

说明

练习