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List:       wekalist
Subject:    [Wekalist] about -N option in PCA
From:       "wanggang" <wanggang () ust ! hk>
Date:       2003-12-08 2:49:57
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Dear all,

	When I use PCA as feature selection, the command 
{
java weka.filters.supervised.attribute.AttributeSelection -S
weka.attributeSelection.Ranker " -E
"weka.attributeSelection.PrincipalComponents -R 0.5" -i dataset.arff -o
object.arff 
} 
is correct. But I want not to normalize the data, so I need use -N option. 
But the command 
{ java weka.filters.supervised.attribute.AttributeSelection -S
weka.attributeSelection.Ranker " -E
"weka.attributeSelection.PrincipalComponents -R 0.5 -N" -i dataset.arff -o
object.arff
} 
will have error, says " illegal option -N"
What's wrong?

Thank you.

Gang


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