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机器学习实战之决策树
from math import logimport operatorimport matplotlib.pyplot as pltdef calcShannonEnt(dataSet): numEntries = len(dataSet) labelCounts = {} for featVec in dataSet: currentLabel原创 2013-06-29 10:02:55 · 3439 阅读 · 1 评论 -
机器学习实战之朴素贝叶斯
from numpy import *def loadDataSet(): postingList=[['my', 'dog', 'has', 'flea', 'problems', 'help', 'please'], ['maybe', 'not', 'take', 'him', 'to', 'dog', 'park', 'stupid'],原创 2013-06-29 16:55:34 · 2458 阅读 · 2 评论