Linear Regression, Data Science, Modeling, Ordinary Least Square, Regression.
calculate a residual? Let’s start with python then move to matrix notation… beta = 1.0 true_value = baby_panda_weight fitted_value = (age * beta) resid = true_value - fitted_value As shown by the python code, a residual is just our true value minus the fitted value. Pretty simple. Figure 6: