MATLAB is an elite language for specialized registering. It coordinates calculation, perception, and programming condition. In addition, it has powerful built-in routines that enable a very wide variety of computations. Regression is that the method of fitting models to information. Regression analysis is employed to model the link between a response variable and one or many predictor variables. In this paper, we exercised refined MATLAB code for linear regression analysis and solved problems are demonstrated through graphs. © 2021 Elsevier B.V., All rights reserved.