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修改8.Regression文档和代码

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chenyyx
2017-09-14 14:04:10 +08:00
parent 1c30c32084
commit 9dfc4e548d
15 changed files with 511 additions and 17 deletions
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35
src/python/8.PredictiveNumericalDataRegression/regression.py
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@@ -396,6 +396,41 @@ def regression2():
plt.show()
# test for abloneDataSet
def abaloneTest():
'''
Desc:
预测鲍鱼的年龄
Args:
None
Returns:
None
'''
# 加载数据
abX, abY = loadDataSet("input/8.Regression/abalone.txt")
# 使用不同的核进行预测
oldyHat01 = lwlrTest(abX[0:99], abX[0:99], abY[0:99], 0.1)
oldyHat1 = lwlrTest(abX[0:99], abX[0:99], abY[0:99], 1)
oldyHat10 = lwlrTest(abX[0:99], abX[0:99], abY[0:99], 10)
# 打印出不同的核预测值与训练数据集上的真实值之间的误差大小
print "old yHat01 error Size is :" , rssError(abY[0:99], oldyHat01.T)
print "old yHat1 error Size is :" , rssError(abY[0:99], oldyHat1.T)
print "old yHat10 error Size is :" , rssError(abY[0:99], oldyHat10.T)
# 打印出 不同的核预测值 与 新数据集（测试数据集）上的真实值之间的误差大小
newyHat01 = lwlrTest(abX[100:199], abX[0:99], abY[0:99], 0.1)
print "new yHat01 error Size is :" , rssError(abY[0:99], yHat01.T)
newyHat1 = lwlrTest(abX[100:199], abX[0:99], abY[0:99], 1)
print "new yHat1 error Size is :" , rssError(abY[0:99], yHat1.T)
newyHat10 = lwlrTest(abX[100:199], abX[0:99], abY[0:99], 10)
print "new yHat10 error Size is :" , rssError(abY[0:99], yHat10.T)
# 使用简单的 线性回归 进行预测，与上面的计算进行比较
standWs = standRegres(abX[0:99], abY[0:99])
standyHat = mat(abx[100:199]) * standWs
print "standRegress error Size is:", rssError(abY[100:199], standyHat.T.A)
#test for ridgeRegression
def regression3():
abX,abY = loadDataSet("input/8.Regression/abalone.txt")