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From RoyGaoVLIS <roy...@zju.edu.cn>
Subject about Spark MLlib StandardScaler's Implementation
Date Tue, 02 Jun 2015 08:25:37 GMT
Hi,
	When I was trying to add test case for ML’s StandardScaler, I found MLlib’s
StandardScaler’s output different from R with params(withMean false,
withScale true)
	Because columns is divided by root-mean-square rather than standard
deviation in R, the scale function.
	I’ m confused about Spark MLlib’s implementation.
	AnyBody can give me a hand ? thx



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