Purpose of rounding in TestRegressionEFM

[zegkljan]

What is the purpose of

if (round) prediction = Math.round(prediction);

in TestRegressionEFM line 126 and why is it turned on by default?

[ignacioarnaldo]

Thanks for your comment. It is turned on by default because, in our experiments, the target variable only took integer values. It should be set to false if the target value can take real values.