示例#1
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 def test_stoc_grade_plot(self):
     data_set, label_mat = logRegres.loadDataSet()
     print("\n data_set == %s" % (data_set))
     print("\n label_mat == %s" % (label_mat))
     weights = logRegres.stocGradAscent0(array(data_set), label_mat)
     print("\n weights == %s" % (weights))
     logRegres.plotBestFit(weights)
示例#2
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 def test_grade_plot(self):
     data_set, label_mat = logRegres.loadDataSet()
     print("\n data_set == %s" % (data_set))
     print("\n label_mat == %s" % (label_mat))
     weights = logRegres.gradAscent(data_set, label_mat)
     print("\n weights == %s" % (weights))
     # getA 为将numpy中的矩阵转换为python的array
     logRegres.plotBestFit(weights.getA())
示例#3
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 def test_best_stoc_grade_plot(self):
     data_set, label_mat = logRegres.loadDataSet()
     print("\n data_set == %s" % (data_set))
     print("\n label_mat == %s" % (label_mat))
     # 迭代150次
     weights = logRegres.stocGradAscent1(array(data_set), label_mat, 200)
     print("\n weights == %s" % (weights))
     # getA 为将numpy中的矩阵转换为python的array
     logRegres.plotBestFit(weights)
示例#4
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#coding=utf-8
import logRegres
from numpy import *

dataArr,labelMat=logRegres.loadDataSet()

# dataMatrix = mat(dataArr) #convert to NumPy matrix
# print (dataMatrix)

ascentMatrix=logRegres.gradAscent(dataArr,labelMat)
print(ascentMatrix)
logRegres.plotBestFit(ascentMatrix.getA())

# ascentMatrix=logRegres.stocGradAscent(array(dataArr),labelMat)
# print(ascentMatrix)
# logRegres.plotBestFit(ascentMatrix)

logRegres.multiTest()
#!/usr/bin/python
# encoding: utf-8

'''
Created on Nov 28, 2015

@author: yanruibo
'''
import logRegres
import numpy as np
if __name__ == '__main__':
    dataArr,labelMat = logRegres.loadDataSet()
    #weights = logRegres.gradAscent(dataArr, labelMat)
    weights = logRegres.stocGradAscent0(np.array(dataArr), labelMat)
    print weights
    #logRegres.plotBestFit(weights.getA())
    logRegres.plotBestFit(weights)
def stocGradAscent1(numIter):
    dataArr, labelMat = logRegres.loadDataSet()
    weights = logRegres.stocGradAscent1(array(dataArr), labelMat, numIter);
    print weights
    
    logRegres.plotBestFit(weights);
#for the loadDataSet
import logRegres
dataArr, labelMat = logRegres.loadDataSet()
wei = logRegres.gradAscent(dataArr, labelMat)

#for the gradAscent
from imp import reload
reload(logRegres)
weights1 = wei.getA()
logRegres.plotBestFit(weights1)

#for the stocGradAscent0
from numpy import *
reload(logRegres)
dataArr, labelMat = logRegres.loadDataSet()
weights2 = logRegres.stocGradAscent0(array(dataArr), labelMat)
logRegres.plotBestFit(weights2)

#for the stocGradAscent1
reload(logRegres)
dataArr, labelMat = logRegres.loadDataSet()
weights3 = logRegres.stocGradAscent1(array(dataArr), labelMat)
logRegres.plotBestFit(weights3)

#for the classifyVector
reload(logRegres)
logRegres.multiTest()
示例#8
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# -*- coding: utf-8 -*-

from numpy import *
import logRegres
data, ls = logRegres.loadDataSet()
wei1 = logRegres.gradAscent(data, ls)
logRegres.plotBestFit(wei1)

reload(logRegres)
wei2 = logRegres.stocGradAscent0(array(data), ls)
logRegres.plotBestFit(wei2)

wei3 = logRegres.stocGradAscent1(array(data), ls)
logRegres.plotBestFit(wei3)

import logRegres
logRegres.multiTest()
示例#9
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def main():
    dataAttr,labelsMat = logRegres.loadDataSet()
    weights = logRegres.gradAscent(dataAttr,labelsMat)
    logRegres.plotBestFit(weights)
示例#10
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# -*- coding: utf-8 -*-
'''
Created on 2016年2月26日

@author: nocml
'''
from numpy import *

import logRegres

dataArr , labelMat =  logRegres.loadDataSet()
print dataArr
# weights = logRegres.gradAscent(dataArr, labelMat)
weights = logRegres.stocGradAscent1(array(dataArr), labelMat , 150)
# print "weights:"
print weights
# weights = [9.90028796735921,1.4181704748685218,    -1.3358509819647089     ]
# weights = [10.373488441795256,    0.7810704644295239 ,   -1.5443579566870218   ]
logRegres.plotBestFit(array(weights))

示例#11
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__author__ = 'sunbeansoft'

import logRegres as lr
from numpy import *

dataArr, labelMat = lr.loadDataSet()
weight = lr.gradAscent(dataArr, labelMat)
lr.plotBestFit(weight.getA())
weight = lr.stocGradAscent0(array(dataArr), labelMat)
lr.plotBestFit(weight)
weight = lr.stocGradAscent1(array(dataArr), labelMat)
lr.plotBestFit(weight)

lr.multiTest()
示例#12
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import logRegres
from numpy import *
a1, a2 = logRegres.loadDataSet()
#print(a1)
#print(a2)
b1 = logRegres.gradAscent(a1, a2)
print(b1.getA())
logRegres.plotBestFit(b1.getA())  ###perfect

#c1 = logRegres.stocGradAscent1(array(a1),a2)
#logRegres.plotBestFit(c1)
示例#13
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import logRegres
"""
dataArr, labelMat = logRegres.loadDataSet()
weights = logRegres.gradAscent(dataArr, labelMat)

from numpy import *
logRegres.plotBestFit(weights)  

from numpy import *
dataArr, labelMat = logRegres.loadDataSet()
#weights = logRegres.stocGradAscent0(array(dataArr), labelMat)
weights = logRegres.stocGradAscent1(array(dataArr), labelMat)
logRegres.plotBestFit(weights)
"""

logRegres.multiTest()
示例#14
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def test_plotBestFit():
    dataSet, labels = logRegres.loadDataSet()
    weights = logRegres.gradAscent(dataSet, labels)
    logRegres.plotBestFit(weights.getA())
示例#15
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import logRegres
dataArr, labelMat = logRegres.loadDataSet()
a = logRegres.gradAscent(dataArr, labelMat)
print a

from numpy import *
reload(logRegres)
print logRegres.plotBestFit(a.getA())
'''
weights = logRegres.stocGradAscent0 (array(dataArr),labelMat)
print logRegres.plotBestFit(weights)
'''

weights = logRegres.stocGradAscent1(array(dataArr), labelMat)
print logRegres.plotBestFit(weights)
示例#16
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def run():
    dataMat, labelMat = lr.loadDataSet()
    weights = lr.stocGradAscent1(dataMat, labelMat)
    print weights
    lr.plotBestFit(weights)
示例#17
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from numpy import *
import logRegres
dataArr, labelMat = logRegres.loadDataSet()
weights = logRegres.stocGradAscent0(array(dataArr), labelMat)
logRegres.plotBestFit(matrix(weights).transpose())
示例#18
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import logRegres
from numpy import *
reload(logRegres)

#dataArr,labelMat=logRegres.loadDataSet()
#weights=logRegres.gradAscent(dataArr,labelMat)
#w=logRegres.stocGradAscent0(array(dataArr),labelMat)
'''
w=logRegres.stocGradAscent1(array(dataArr),labelMat,500)
print w
logRegres.plotBestFit(w)
'''
logRegres.multiTest()
示例#19
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def stocGradAscent1(numIter):
    dataArr, labelMat = logRegres.loadDataSet()
    weights = logRegres.stocGradAscent1(array(dataArr), labelMat, numIter)
    print weights

    logRegres.plotBestFit(weights)
示例#20
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#!usr/bin/python
#coding:utf8

import logRegres
from numpy import *

dataMat, Lables = logRegres.loadDataSet()
weights = logRegres.stocGradAscent1(array(dataMat), Lables)

logRegres.plotBestFit(dataMat, Lables, weights)

# x = arange(-3.0, 3.0, 0.1)
# print x

# logRegres.muliTest()
示例#21
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def gradAscent():
    dataArr, labelMat = logRegres.loadDataSet()
    weights = logRegres.gradAscent(dataArr, labelMat)
    print weights

    logRegres.plotBestFit(weights.getA())
import logRegres
from numpy import *

dataArr, labelMat = logRegres.loadDataSet()
weights = logRegres.gradAscent(dataArr, labelMat)
logRegres.plotBestFit(weights.getA())

weights = logRegres.stocGradAscent0(array(dataArr), labelMat)
logRegres.plotBestFit(weights)

weights = logRegres.stocGradAscent1(array(dataArr), labelMat, 500)
logRegres.plotBestFit(weights)

logRegres.multiTest()
示例#23
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#从文件夹中提取数据
dataArr, labelMat = logRegres.loadDataSet()  #加载数据,存放在列表中
print "\n数据列表是:\n", dataArr  #打印数据,测试读取是否异常
print "\n类列表是:\n", labelMat

#用数据和标签 利用梯度上升算法计算 权重
weights = logRegres.gradAscent(dataArr, labelMat)  #梯度上升算法计算最佳参数值
stocWeights = logRegres.stocGradAscent1(array(dataArr), labelMat,
                                        500)  #随机梯度上升算法计算最佳参数值
print "\n权重w0,w1,w2的值是:\n", weights

#######################################       第一个图:梯度上升算法的例子          #################################
#利用权重绘制直线 利用数据绘制点
print "\n第一个图:梯度上升算法的例子"
#梯度上升算法:批量处理方法(一次性处理所有数)
logRegres.plotBestFit(
    weights.getA())  # .getA()将矩阵转换成数组 因为数组可以很方便的任意读取其中的元素,矩阵不行

#######################################       第二个图:随机梯度上升算法的例子          #################################
#随机梯度上升:在线学习方法(新样本来到时,对分类器进行增量式更新)
print "第二个图:随机梯度上升算法的例子"  #
logRegres.plotBestFit(stocWeights)

########################################       第三个例子:预测病马的死亡率          #################################
#病马死亡率预测
print "\n第三个例子:预测病马的死亡率"
logRegres.multiTest()

#程序运行结果:
'''
数据列表是: [[1.0, -0.017612, 14.053064], [1.0, -1.395634, 4.662541], [1.0, -0.752157, 6.53862], [1.0, -1.322371, 7.152853], [1.0, 0.423363, 11.054677], [1.0, 0.406704, 7.067335], [1.0, 0.667394, 12.741452], [1.0, -2.46015, 6.866805], [1.0, 0.569411, 9.548755], [1.0, -0.026632, 10.427743], [1.0, 0.850433, 6.920334], [1.0, 1.347183, 13.1755], [1.0, 1.176813, 3.16702], [1.0, -1.781871, 9.097953], [1.0, -0.566606, 5.749003], [1.0, 0.931635, 1.589505], [1.0, -0.024205, 6.151823], [1.0, -0.036453, 2.690988], [1.0, -0.196949, 0.444165], [1.0, 1.014459, 5.754399], [1.0, 1.985298, 3.230619], [1.0, -1.693453, -0.55754], [1.0, -0.576525, 11.778922], [1.0, -0.346811, -1.67873], [1.0, -2.124484, 2.672471], [1.0, 1.217916, 9.597015], [1.0, -0.733928, 9.098687], [1.0, -3.642001, -1.618087], [1.0, 0.315985, 3.523953], [1.0, 1.416614, 9.619232], [1.0, -0.386323, 3.989286], [1.0, 0.556921, 8.294984], [1.0, 1.224863, 11.58736], [1.0, -1.347803, -2.406051], [1.0, 1.196604, 4.951851], [1.0, 0.275221, 9.543647], [1.0, 0.470575, 9.332488], [1.0, -1.889567, 9.542662], [1.0, -1.527893, 12.150579], [1.0, -1.185247, 11.309318], [1.0, -0.445678, 3.297303], [1.0, 1.042222, 6.105155], [1.0, -0.618787, 10.320986], [1.0, 1.152083, 0.548467], [1.0, 0.828534, 2.676045], [1.0, -1.237728, 10.549033], [1.0, -0.683565, -2.166125], [1.0, 0.229456, 5.921938], [1.0, -0.959885, 11.555336], [1.0, 0.492911, 10.993324], [1.0, 0.184992, 8.721488], [1.0, -0.355715, 10.325976], [1.0, -0.397822, 8.058397], [1.0, 0.824839, 13.730343], [1.0, 1.507278, 5.027866], [1.0, 0.099671, 6.835839], [1.0, -0.344008, 10.717485], [1.0, 1.785928, 7.718645], [1.0, -0.918801, 11.560217], [1.0, -0.364009, 4.7473], [1.0, -0.841722, 4.119083], [1.0, 0.490426, 1.960539], [1.0, -0.007194, 9.075792], [1.0, 0.356107, 12.447863], [1.0, 0.342578, 12.281162], [1.0, -0.810823, -1.466018], [1.0, 2.530777, 6.476801], [1.0, 1.296683, 11.607559], [1.0, 0.475487, 12.040035], [1.0, -0.783277, 11.009725], [1.0, 0.074798, 11.02365], [1.0, -1.337472, 0.468339], [1.0, -0.102781, 13.763651], [1.0, -0.147324, 2.874846], [1.0, 0.518389, 9.887035], [1.0, 1.015399, 7.571882], [1.0, -1.658086, -0.027255], [1.0, 1.319944, 2.171228], [1.0, 2.056216, 5.019981], [1.0, -0.851633, 4.375691], [1.0, -1.510047, 6.061992], [1.0, -1.076637, -3.181888], [1.0, 1.821096, 10.28399], [1.0, 3.01015, 8.401766], [1.0, -1.099458, 1.688274], [1.0, -0.834872, -1.733869], [1.0, -0.846637, 3.849075], [1.0, 1.400102, 12.628781], [1.0, 1.752842, 5.468166], [1.0, 0.078557, 0.059736], [1.0, 0.089392, -0.7153], [1.0, 1.825662, 12.693808], [1.0, 0.197445, 9.744638], [1.0, 0.126117, 0.922311], [1.0, -0.679797, 1.22053], [1.0, 0.677983, 2.556666], [1.0, 0.761349, 10.693862], [1.0, -2.168791, 0.143632], [1.0, 1.38861, 9.341997], [1.0, 0.317029, 14.739025]]
类列表是: [0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 0]
示例#24
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import logRegres
from numpy import *

if __name__ == '__main__':
    dataArr, labelMat = logRegres.loadDataSet()
    weights = logRegres.gradAscent(dataArr, labelMat)
    logRegres.plotBestFit(weights.getA())
    weights1 = logRegres.stocGradAscent0(array(dataArr), labelMat)
    logRegres.plotBestFit(weights1)
    weights2 = logRegres.stocGradAscent1(array(dataArr), labelMat)
    logRegres.plotBestFit(weights2)
示例#25
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'''
Created on May 27, 2014
Logistic Regression Main Study
@author: Guodong Jin
'''

import logRegres
from numpy import *
dataArr,labelMat = logRegres.loadDataSet()
print len(dataArr)
print labelMat

res_w = logRegres.gradAscent(dataArr, labelMat)

print res_w

# logRegres.plotBestFit(res_w.getA())

res_w, l_w0, l_w1, l_w2= logRegres.stocGradAscent1_0(array(dataArr), labelMat, 100)
logRegres.plotBestFit(res_w)
# import matplotlib.pyplot as plt
# x = range(len(l_w0))
# fig = plt.figure()
# ax = fig.add_subplot(111)
# print res_w
# ax.plot(x, array(l_w1))
# plt.show()

def gradAscent():
    dataArr, labelMat = logRegres.loadDataSet()
    weights = logRegres.gradAscent(dataArr, labelMat)
    print weights
    
    logRegres.plotBestFit(weights.getA())
示例#27
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import logRegres

dataArr, labelMat = logRegres.loadDataSet()
wei = logRegres.gradAscend(dataArr, labelMat)
logRegres.plotBestFit(wei)
示例#28
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from numpy import *
import logRegres
import logRegresGo

dataArr, labelMat = logRegres.loadDataSet()
weights = logRegres.gradAscent(dataArr, labelMat)
logRegres.plotBestFit(weights)
# autor: zhumenger
import logRegres
from numpy import *
dataArr, labelMat = logRegres.loadDataSet()
print(logRegres.gradAscent(dataArr, labelMat))
weigths = logRegres.stocGradAscent1(array(dataArr), labelMat)
print(logRegres.plotBestFit(weigths))