Statistical inference for exploratory data analysis ... - Hadley Wickham
Statistical inference for exploratory data analysis ... - Hadley Wickham
Statistical inference for exploratory data analysis ... - Hadley Wickham
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esiduals<br />
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<strong>Statistical</strong> <strong>inference</strong> <strong>for</strong> graphics 4375<br />
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Figure 6. Residuals of the Boston Housing Data plotted against order in the <strong>data</strong>. What does the<br />
structure in the real plot indicate?<br />
In supervised classification problems, especially when the size of the sample<br />
is small in relation to the number of variables, the PDA index is suitable. This<br />
index is designed to overcome the variance estimation problems that arise in<br />
the LDA index. When the sample size is small and the number of variables is<br />
large, the LDA index produces unreliable results, which express themselves as<br />
Phil. Trans. R. Soc. A (2009)<br />
Downloaded from<br />
rsta.royalsocietypublishing.org on January 7, 2010
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