Research Article

Parametric and Nonparametric Approaches of Reid Vapor Pressure Prediction for Gasoline Containing Oxygenates: A Comparative Analysis Using Partial Least Squares, Nonlinear, and LOWESS Regression Modelling Strategies with Physical Properties

Figure 6

Normality assumption plots for NLR prediction performance: (a) histogram plot for residuals and (b) probability plot of residual for semistudentized residuals.
(a)
(b)