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Data Analysis and Statistics for Geography, Environmental Science, and Engineering
book

Data Analysis and Statistics for Geography, Environmental Science, and Engineering

by Miguel F. Acevedo
December 2012
Beginner content levelBeginner
557 pages
19h 5m
English
CRC Press
Content preview from Data Analysis and Statistics for Geography, Environmental Science, and Engineering
490 Data Analysis and Statistics for Geography, Environmental Science, and Engineering
which at the end produces a screeplot (Figure 14.19). Note that the object. PC is removed at the end.
If we re-execute the commands shown in the script window except this remove, then we can use
biplot(.PC) from the console to obtain a biplot.
14.10.6 factor analysis
To gain insight, work with the simple data matrix X given in Equation 14.42. Apply the function
factanal that uses the maximum likelihood method for FA.
>Xf <- factanal(X, factors =1)
> Xf
Call:
factanal(x = X, factors = 1)
FIGURE 14.17 Make frag the active dataset and view it.
FIGURE 14.18 Select a ...
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Publisher Resources

ISBN: 9781439885017