08 2021 档案

decisionTrees_ID3
摘要:import math,operatordef calShannonEnt(dataSet): numEntries = len(dataSet) labelCounts = {} for featVec in dataSet: currentLabel = featVec[-1] if curre 阅读全文

posted @ 2021-08-31 15:37 Yan12345678 阅读(32) 评论(0) 推荐(0) 编辑

kNN_handwriting
摘要:import numpy as npfrom os import listdirimport operatordef img2vector(filename): fr = open(filename) lines = fr.readlines() returnVect = np.zeros((1,1 阅读全文

posted @ 2021-08-28 18:37 Yan12345678 阅读(57) 评论(0) 推荐(0) 编辑

kNN_datingTest
摘要:import numpy as npimport operatordef classify1(inX, dataset, labels, k): datasetSize = dataset.shape[0] diffMat = np.tile(inX,(datasetSize,1)) - datas 阅读全文

posted @ 2021-08-28 16:38 Yan12345678 阅读(39) 评论(0) 推荐(0) 编辑

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