GDA’s main objective is to minimise the cost function. Cost function h𝜽 helps us to figure out the best possible values for 𝜽0 and 𝜽1 which would provide the best fit line for the data points. It ...

8.3. Regression diagnostics¶. Like R, Statsmodels exposes the residuals. That is, keeps an array containing the difference between the observed values Y and the values predicted by the linear model. A ...