=====Forecasting Team Meeting - September 16, 2020===== **Attended: Josh, Keola** =====Updates===== * Started Section 8 of the course: Polynomial Regression * Topics learned: Polynomial Regression Intuition, implementation in python =====Problems===== * COVID-19 forced today's lab hours to be online =====Reminders===== * **PolynomialFeatures(degree = ).fit_transform** is used to create a matrix where each value of your independent variable, x, is organized into row arrays based on the degree * If you have features [a, b, c] the default polynomial features(in sklearn the degree is 2) should be [1, a, b, c, a^2, b^2, c^2, ab, bc, ca]. * If you have features [1] and degree = 2, the matrix should give [1, 1, 1,] * If you have features [2] and degree = 2, the matrix should give [1, 2, 4,] * If you have features [3] and degree = 2, the matrix should give [1, 3, 9,]