Chapter 6 Predicting the Octane Rating of Gasoline - Discovering Partial Least Squares with JMP [Book]

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6Predicting the Octane Rating of Gasoline

Data Table Description

Creating a Test Set Indicator Column

Viewing the Data

Octane and the Test Set

Creating a Stacked Data Table

Constructing Plots of the Individual Spectra

Individual Spectra

Combined Spectra

A First PLS Model

Excluding the Test Set

Fitting the Model

The Initial Report

A Second PLS Model

Fitting the Model

High-Level Overview

Score Scatterplot Matrices

Viewing VIPs and Regression Coefficients for Spectral Data

Model Assessment Using Test Set

Background

The example presented in this section deals with predicting the octane rating of gasoline samples based on spectral analysis. The data set contains octane ratings (Y) and ...

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