The mean absolute error (MAE) is an average of the absolute errors. The MAE units are the same as the predicted target, which is useful for understanding whether the size of the error is of concern or not. The smaller the MAE the better the model’s...

The MSE metric measures the average of the squares of the errors, that is  the average squared difference between the estimated values and the actual value. The MSE is a measure of the quality of an estimator—it is always non-negative, and values...

The max value refers to the maximum value and is calculated for each numerical variable in a data set.

The min value refers to the minimum value and is calculated for each numerical variable in a data set.

The median is calculated for each numerical variable in a data set. See definition here

Marketing costs are the all expenses that the company makes to market and sell its products and develop and promote its brand. These marketing costs or expenses include expenses incurred to change the title of goods, promotion of goods, advertisements,,...