Compute the lower boundary root-mean-square error.
RMSE.L(ref, pred)
The lower boundary root-mean-square error.
Variable that was predicted.
The prediction given by the model.
Oldemar Rodriguez Rojas.
LIMA-NETO, E.A., DE CARVALHO, F.A.T., (2008). Centre and range method to fitting a linear regression model on symbolic interval data. Computational Statistics and Data Analysis 52, 1500-1515.
LIMA-NETO, E.A., DE CARVALHO, F.A.T., (2010). Constrained linear regression models for symbolic interval-valued variables. Computational Statistics and Data Analysis 54, 333-347.
sym.glm