The target values are given in the fourth column and their corresponding attributes or predictors are the previous 3 values listed from the first to third columns in the 𝐿𝐸 [𝑚] matrix. As an example, the past lags corresponding to the 𝐿𝐸 𝑚 target value are [𝐿𝐸 𝑚 1 , 𝐿𝐸 𝑚 2 , 𝐿𝐸 ] . 𝑀 is divided in two matrices, 𝑋 𝑖 containing the three past lags and 𝑌 𝑖 containing the target values