8509519d8b
See [SPARK-5894](https://issues.apache.org/jira/browse/SPARK-5894). Author: Xusen Yin <yinxusen@gmail.com> Author: Xiangrui Meng <meng@databricks.com> Closes #5245 from yinxusen/SPARK-5894 and squashes the following commits: dc461a6 [Xusen Yin] merge polynomial expansion v2 6d0c3cc [Xusen Yin] Merge branch 'SPARK-5894' of https://github.com/mengxr/spark into mengxr-SPARK-5894 57bfdd5 [Xusen Yin] Merge branch 'master' into SPARK-5894 3d02a7d [Xusen Yin] Merge branch 'master' into SPARK-5894 a067da2 [Xiangrui Meng] a new approach for poly expansion 0789d81 [Xiangrui Meng] Merge remote-tracking branch 'apache/master' into SPARK-5894 4e9aed0 [Xusen Yin] fix test suite 95d8fb9 [Xusen Yin] fix sparse vector indices 8d39674 [Xusen Yin] fix sparse vector expansion error 5998dd6 [Xusen Yin] fix dense vector fillin fa3ade3 [Xusen Yin] change the functional code into imperative one to speedup b70e7e1 [Xusen Yin] remove useless case class 6fa236f [Xusen Yin] fix vector slice error daff601 [Xusen Yin] fix index error of sparse vector 6bd0a10 [Xusen Yin] merge repeated features 419f8a2 [Xusen Yin] need to merge same columns 4ebf34e [Xusen Yin] add test suite of polynomial expansion 372227c [Xusen Yin] add polynomial expansion |
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