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Preface to First Edition - lib

Preface to First Edition - lib

Preface to First Edition - lib

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172 RECURSIVE PARTITIONINGR> <strong>lib</strong>rary("lattice")R> gdata panelf print(xyplot(avg ~ obs | var, data = gdata,+ panel = panelf,+ scales = "free", xlab = "",+ ylab = "Estimated Class Probability Glaucoma"))Estimated Class Probability Glaucoma0.0 0.2 0.4 0.6 0.8 1.0varg0.0 0.2 0.4 0.6 0.8 1.0vari0.0 0.5 1.00.00 0.05 0.10 0.15 0.20 0.25Figure 9.5Estimated class probabilities depending on two important variables.The 0.5 cut-off for the estimated glaucoma probability is depicted as ahorizontal line. Glaucomateous eyes are plotted as circles and normaleyes are triangles.© 2010 by Taylor and Francis Group, LLC

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