更新 15章 mr版本链接

Author: jiangzhonglian

docs/15.大数据与MapReduce.md

@@ -185,7 +185,6 @@ def batchPegasos(dataSet, labels, lam, T, k):
 
 [MR版本的代码位置](https://github.com/apachecn/MachineLearning/blob/master/src/python/15.BigData_MapReduce/mrSVM.py): <https://github.com/apachecn/MachineLearning/blob/master/src/python/15.BigData_MapReduce/mrSVM.py>
 
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 * **作者：[片刻](http://cwiki.apachecn.org/display/~jiangzhonglian) [小瑶](http://cwiki.apachecn.org/display/~chenyao)**