SPARK-1782: svd for sparse matrix using ARPACK#964

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vrilleup wants to merge 17 commits intoapache:masterfrom

vrilleup:master

Commits on Jun 4, 2014

SPARK-1782: svd for sparse matrix using ARPACK
Li Pu
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improve eigenvalue sorting
Li Pu
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improve scala style
Li Pu
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use non-sparse implementation when k = n
Li Pu
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fix EOF new line
Li Pu
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use aggregate and axpy
Li Pu
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Commits on Jun 7, 2014

improve comments
Li Pu
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Commits on Jun 13, 2014

fix binary compatibility
Li Pu
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Commits on Jun 18, 2014

add flag for dense svd or sparse svd
Li Pu
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Commits on Jun 23, 2014

improve svd api
Li Pu
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Commits on Jun 26, 2014

improve RowMatrix multiply
Li Pu
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Commits on Jul 7, 2014

automatically determine SVD compute mode and parameters
Li Pu
committed