Chemical Features of Wine. Figure 4.14 shows the PCA output on data (nonnormalized) in which the attributes

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Chemical Features of Wine. Figure 4.14 shows the PCA output on data (nonnormalized) in which the attributes represent chemical characteristics of wine, and each case is a different wine.

a. The data are in the file Wine.csv. Observe the Eigenvalues table, and explain why the value for PC1 is so much greater than that of any other column.

b. Comment on the use of normalization (standardization) in part (a).

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Data Mining For Business Analytics Concepts Techniques And Applications With Jmp Pro

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Authors: Galit Shmueli, Peter C Bruce, Mia L Stephens, Nitin R Patel

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