lee19 e7dafd433e [SPARK-8563] [MLLIB] Fixed a bug so that IndexedRowMatrix.computeSVD().U.numCols = k ... I'm sorry that I made https://github.com/apache/spark/pull/6949 closed by mistake. I pushed codes again. And, I added a test code. > There is a bug that `U.numCols() = self.nCols` in `IndexedRowMatrix.computeSVD()` It should have been `U.numCols() = k = svd.U.numCols()` > ``` self = U * sigma * V.transpose (m x n) = (m x n) * (k x k) * (k x n) //ASIS --> (m x n) = (m x k) * (k x k) * (k x n) //TOBE ``` Author: lee19 <lee19@live.co.kr> Closes #6953 from lee19/MLlibBugfix and squashes the following commits: c1812a0 [lee19] [SPARK-8563] [MLlib] Used nRows instead of numRows() to reduce a burden. 4b9803b [lee19] [SPARK-8563] [MLlib] Fixed a build error. c2ccd89 [lee19] Added a unit test that validates matrix sizes of svd for [SPARK-8563][MLlib] 8373424 [lee19] [SPARK-8563][MLlib] Fixed a bug so that IndexedRowMatrix.computeSVD().U.numCols = k (cherry picked from commit e72526227f) Signed-off-by: Xiangrui Meng <meng@databricks.com>		2015-06-30 14:08:09 -07:00
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src	[SPARK-8563] [MLLIB] Fixed a bug so that IndexedRowMatrix.computeSVD().U.numCols = k	2015-06-30 14:08:09 -07:00
pom.xml	Preparing development version 1.4.2-SNAPSHOT	2015-06-23 19:48:44 -07:00