I am working on clustering a large data set. Before clustering, I need to
reduce the dimensionality using the PCA attribute selection algorithm. But
the attribute selection part in Weka requires specifying the " class"
attribute. This is fine for classification, but for clustering, this may not
be right, since the class is not available. I wonder if weka has any option
that allow to use PCA without specifying the class.
Thanks a lot!!
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