I've created a regression model and it prints the score of MSE and R$^2$ for each model. However, if you notice the MSE value of linear regression is $1\mathrm{.}52$ approximately. Why in the graph shows MSE is $0.$ There's no model with MSE $=0.$ That's almost impossible. Also, I choose min to print the value with the best MSE because the lower MSE, the closer to the actual values but i tried max and it didnt solve the issue either. I want the graph to reflect the $1\mathrm{.}52$ which it looks more real.