def test2():
''' line = '0.530897\t0.893462'
curLine = line.strip().split('\t')
print(curLine)
fltLine = map(float, curLine) #在python3里面变成map了。。。错了
print(list(curLine))
print(set(fltLine)) '''
myDat = regTrees.loadDataSet('exp.txt') #200*2 float, exp和ex2也差不多，y的方差更小
#print(myDat[2]) #print(list(myDat[2]))一样的
print(shape(myDat))
#print(m1[:,-1]) #print(m1[5,:]) # 用mat()转成矩阵才能这样用
myMat = mat(myDat)
#retTree = regTrees.createTree(myMat, ops=(1000,10)) #(0,1)就是每个点都分了一个叉，典型的overfitting
#retTree = regTrees.createTree(myMat, ops=(0.2,4)) #ex2比ex00分布差不多，y的取值大了100倍，因此用10000,4和原来的效果差不多
#print(retTree)
retTree = regTrees.createTree(myMat, ops=(10, 4))
testDat = mat(
regTrees.loadDataSet('ex2test.txt')) #ex2test.txt的数据分布范围和ex2很接近，真实的测试集
pruned_Tree = regTrees.prune(retTree, testDat)
print(pruned_Tree)
#regTrees.plot1(myMat)
regTrees.plot1withTree(myMat, retTree)
regTrees.plot1withTree(myMat, pruned_Tree)
def test_compare(self):
train_mat = mat(regTrees.loadDataSet("bikeSpeedVsIq_train.txt"))
test_mat = mat(regTrees.loadDataSet("bikeSpeedVsIq_test.txt"))
# 创建一个回归树
myTree = regTrees.createTree(train_mat, ops=(1, 20))
yHat = compareRegression.createForeCast(myTree, test_mat[:, 0])
corrcoef = compareRegression.corrcoef(yHat, test_mat[:, 1],
rowvar=0)[0, 1]
print("\n corrcoef == %s" % (corrcoef))
# 创建一颗模型树
myTree = regTrees.createTree(train_mat,
linearModelTrees.modelLeaf,
linearModelTrees.modelErr,
ops=(1, 20))
yHat = compareRegression.createForeCast(
myTree, test_mat[:, 0], compareRegression.modelTreeEval)
corrcoef = compareRegression.corrcoef(yHat, test_mat[:, 1],
rowvar=0)[0, 1]
print("\n corrcoef == %s" % (corrcoef))
# 标准回归
ws, X, Y = linearModelTrees.linearSolve(train_mat)
print("\n ws == %s" % (ws))
for i in range(shape(test_mat)[0]):
yHat[i] = test_mat[i, 0] * ws[1, 0] + ws[0, 0]
corrcoef = compareRegression.corrcoef(yHat, test_mat[:, 1],
rowvar=0)[0, 1]
print("\n corrcoef == %s" % (corrcoef))
def test_prune(self):
data_set = regTrees.loadDataSet("ex2.txt")
data_set = mat(data_set)
tree = regTrees.createTree(data_set, ops=(1, 4))
print("\n tree == %s" % (tree))
test_set = regTrees.loadDataSet("ex2test.txt")
test_set = mat(test_set)
# 后剪枝，可以看到没有像预期被剪成两部分，说明后剪枝可能不如先剪枝有效
pruneTree = pruneTrees.prune(tree, test_set)
print("\n pruneTree == %s" % (pruneTree))
def reDraw(tolN, tolS):
reDraw.f.clf() #清空图像
reDraw.a = reDraw.f.add_subplot(111)
trainData = regTrees.loadDataSet(
".//machinelearninginaction//ch09//sine.txt")
if chkBtnVar.get(): #复选框被选中，求模型树
modelTree = regTrees.createTree(trainData,
leafType=regTrees.modelLeaf,
errType=regTrees.modelErr,
ops=(tolS, tolN))
y_hat = regTrees.createForeCast(modelTree,
trainData[:, 0],
modelEval=regTrees.modelTreeEval)
else: #回归树
modelTree = regTrees.createTree(trainData, ops=(tolS, tolN))
y_hat = regTrees.createForeCast(modelTree, trainData[:, 0])
data_hat = np.hstack((trainData[:, 0], y_hat))
sort_hat = sorted(data_hat.tolist(), key=lambda x: x[0])
sort_x = [x[0] for x in sort_hat]
sort_y = [x[1] for x in sort_hat]
reDraw.a.scatter(trainData[:, 0].T.tolist()[0],
trainData[:, 1].T.tolist()[0],
s=50)
reDraw.a.plot(sort_x, sort_y)
reDraw.canvas.show()
def tkinterTest():
root = tk.Tk()
tk.Label(root, text="Plot Place Holder").grid(row=0, columnspan=3)
tk.Label(root, text="tolN").grid(row=1, column=0)
tolNentry = tk.Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, '10')
tk.Label(root, text="tolS").grid(row=2, column=0)
tolSentry = tk.Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0, '1.0')
tk.Button(root, text="ReDraw", command=drawNewTree).grid(row=1,
column=2,
rowspan=3)
# IntVar按钮整数值
chkBtnVar = tk.IntVar()
chkBtn = tk.Checkbutton(root, text="Model Tree", variable=chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet('sine.txt'))
reDraw.testDat = arange(min(reDraw.rawDat[:, 0]), max(reDraw.rawDat[:, 0]),
0.01)
reDraw(1.0, 10)
tk.Button(root, text='Quit', fg="black", command=root.quit).grid(row=1,
column=2)
root.mainloop()
def __init__(self, parent):
self.parent = parent
fig = Figure(figsize=(5, 4), dpi=100) #create canvas
self.f = fig
self.canvas = FigureCanvasTkAgg(fig, master=root)
self.canvas.show()
self.canvas.get_tk_widget().grid(row=0, columnspan=3)
#Label(root, text="Plot Place Holder").grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
self.tolNentry = Entry(self.parent)
self.tolNentry.grid(row=1, column=1)
self.tolNentry.insert(0, '10')
Label(root, text="tolS").grid(row=2, column=0)
self.tolSentry = Entry(root)
self.tolSentry.grid(row=2, column=1)
self.tolSentry.insert(0, '1.0')
Button(root, text="ReDraw", command=self.drawNewTree).grid(row=1,
column=2,
rowspan=3)
Button(root, text='Quit', fg="black", command=root.quit).grid(row=1,
column=2)
self.chkBtnVar = IntVar()
self.chkBtn = Checkbutton(root,
text="Model Tree",
variable=self.chkBtnVar)
self.chkBtn.grid(row=3, column=0, columnspan=2)
self.rawDat = mat(regTrees.loadDataSet('sine.txt'))
self.testDat = arange(min(self.rawDat[:, 0]), max(self.rawDat[:, 0]),
0.01)
self.reDraw(1.0, 10)
def drawNewTree(): datPath, tolS, tolN = getInputs() try: reDraw.rawDat = mat(regTrees.loadDataSet(datPath)) reDraw.testDat = arange(min(reDraw.rawDat[:,0]), max(reDraw.rawDat[:,0]), 0.01) reDraw(tolS, tolN) except: print "Cannot find file %s" % datPath
def test3():
myDat = mat(regTrees.loadDataSet('exp2.txt')) #200*2 float
print(shape(myDat))
retTree = regTrees.createTree(myDat, regTrees.modelLeaf, regTrees.modelErr,
(1, 10))
print(retTree)
#regTrees.plot1(myDat)
regTrees.plot1withTree_Linear(myDat, retTree)
def test_linear_model_tree(self):
data_set = regTrees.loadDataSet("exp2.txt")
data_set = mat(data_set)
tree = regTrees.createTree(data_set,
linearModelTrees.modelLeaf,
linearModelTrees.modelErr,
ops=(1, 10))
print("\n tree == %s" % (tree))
def SL_Model():
test = re.loadDataSet('bikeSpeedVsIq_test.txt')
train = re.loadDataSet('bikeSpeedVsIq_train.txt')
testMat = mat(test)
trainMat = mat(train)
mytree = re.createTree(trainMat, ops=(1, 20))
yHat = createForeCast(mytree, testMat[:, 0])
print('回归树的相关性R^2：', corrcoef(yHat, testMat[:, 1], rowvar=0)[0, 1])
myTree = re.createTree(trainMat, tr.modelLeaf, tr.modelErr, ops=(1, 20))
yHat = createForeCast(myTree, testMat[:, 0], modelTreeEval)
print('模型树的相关性R^2：', corrcoef(yHat, testMat[:, 1], rowvar=0)[0, 1])
ws, X, Y = tr.linearSolve(trainMat)
for i in range(shape(testMat)[0]):
yHat[i] = testMat[i, 0] * ws[1, 0] + ws[0, 0]
print('标准线性回归的相关性R^2：', corrcoef(yHat, testMat[:, 1], rowvar=0)[0, 1])
def test_create_reg_tree(self):
data_set = regTrees.loadDataSet("ex0.txt")
data_set = mat(data_set)
print("\n data_set == %s" % (data_set))
tree = regTrees.createTree(data_set)
print("\n tree == %s" % (tree))
# 测试过拟合
tree = regTrees.createTree(data_set, ops=(0, 1))
print("\n tree == %s" % (tree))
def test4():
trainMat = mat(regTrees.loadDataSet('bikeSpeedVsIq_train.txt'))
testMat = mat(regTrees.loadDataSet('bikeSpeedVsIq_test.txt'))
#regTrees.plot1(testMat)
myTree = regTrees.createTree(trainMat, ops=(1, 20))
yHat = regTrees.createForeCast(myTree, testMat[:, 0])
print(corrcoef(yHat, testMat[:, 1], rowvar=0)[0, 1])
#regTrees.plot1withTree(trainMat, myTree)
myTree = regTrees.createTree(trainMat, regTrees.modelLeaf,
regTrees.modelErr, (1, 20))
yHat = regTrees.createForeCast(myTree, testMat[:, 0],
regTrees.modelTreeEval)
print(corrcoef(yHat, testMat[:, 1], rowvar=0)[0, 1])
print(myTree)
regTrees.plot1withTree_Linear(trainMat, myTree)
ws, X, Y = regTrees.linearSolve(trainMat)
print(ws)
for i in range(shape(testMat)[0]):
yHat[i] = testMat[i, 0] * ws[1, 0] + ws[0, 0]
print(corrcoef(yHat, testMat[:, 1], rowvar=0)[0, 1])
def reDraw(tolS,tolN):
reDraw.rawDat=mat(regTrees.loadDataSet("C:\Users\YAN\Desktop\Cart\sine.txt"))
reDraw.testDat=arange(min(reDraw.rawDat[:,0]),max(reDraw.rawDat[:,0]),0.01)
reDraw.f.clf()
reDraw.a=reDraw.f.add_subplot(111)
if chkBtnVar.get():
if tolN<2: tolN=2
myTree=regTrees.createTree(reDraw.rawDat,regTrees.modelLeaf,regTrees.modelErr,(tolS,tolN))
yHat=regTrees.createForeCast(myTree,reDraw.testDat,regTrees.modelTreeEval)
else:
myTree=regTrees.createTree(reDraw.rawDat,ops=(tolS,tolN))
yHat=regTrees.createForeCast(myTree,reDraw.testDat)
reDraw.a.scatter(reDraw.rawDat[:,0],reDraw.rawDat[:,1],s=5)
reDraw.a.plot(reDraw.testDat,yHat,linewidth=2.0)
reDraw.canvas.show()
def test10():
myDat = regTrees.loadDataSet('ex00.txt')
fy = mat(myDat)[0:5, 1]
print(fy)
afy = fy[0]
print(afy)
fy[1] = fy[0]
print('fy', fy)
print('fy.T', fy.T)
print('fy.tolist()', fy.tolist())
print('fy.T.tolist()', fy.T.tolist())
print('fy.T.tolist()[0]', fy.T.tolist()[0])
#print(set(fy)) #出错：unhashable type: 'matrix'
#print(set(fy.T.tolist()))#出错：TypeError: unhashable type: 'list'
print(set(fy.T.tolist()[0])) #这样可以！！实现了对fy里元素的去重复！
my = map(float, fy)
print(set(my)) #这样也可以！！实现了对fy里元素的去重复！
def main(root):
# 标题
Label(root, text="Plot Place Holder").grid(row=0, columnspan=3)
# 输入栏1, 叶子的数量
Label(root, text="tolN").grid(row=1, column=0)
global tolNentry
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, '10')
# 输入栏2, 误差量
Label(root, text="tolS").grid(row=2, column=0)
global tolSentry
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
# 设置输出值
tolSentry.insert(0, '1.0')
# 设置提交的按钮
Button(root, text="确定", command=drawNewTree).grid(row=1,
column=2,
rowspan=3)
# 设置复选按钮
global chkBtnVar
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable=chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
# 退出按钮
Button(root, text="退出", fg="black", command=quit).grid(row=1, column=2)
# 创建一个画板 canvas
reDraw.f = Figure(figsize=(5, 4), dpi=100)
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
reDraw.rawDat = mat(regTrees.loadDataSet('db/9.RegTrees/sine.txt'))
reDraw.testDat = arange(min(reDraw.rawDat[:, 0]), max(reDraw.rawDat[:, 0]),
0.01)
reDraw(1.0, 10)
def main(root):
# 标题
Label(root, text="Plot Place Holder").grid(row=0, columnspan=3)
# 输入栏1, 叶子的数量
Label(root, text="tolN").grid(row=1, column=0)
global tolNentry
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, '10')
# 输入栏2, 误差量
Label(root, text="tolS").grid(row=2, column=0)
global tolSentry
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
# 设置输出值
tolSentry.insert(0,'1.0')
# 设置提交的按钮
Button(root, text="确定", command=drawNewTree).grid(row=1, column=2, rowspan=3)
# 设置复选按钮
global chkBtnVar
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable = chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
# 退出按钮
Button(root, text="退出", fg="black", command=quit).grid(row=1, column=2)
# 创建一个画板 canvas
reDraw.f = Figure(figsize=(5, 4), dpi=100)
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
reDraw.rawDat = mat(regTrees.loadDataSet('input/9.RegTrees/sine.txt'))
reDraw.testDat = arange(min(reDraw.rawDat[:, 0]), max(reDraw.rawDat[:, 0]), 0.01)
reDraw(1.0, 10)
def drawNewTree():
tolN, tolS = getInputs() # get values from Entry boxes
reDraw(tolS, tolN)
if __name__ == "__main__":
import regTrees
testMat = mat(eye(4))
print("\ntestData:\n", testMat)
mat0, mat1 = binSplitDataSet(testMat, 2, 0.5)
print("\nmat0:\n", mat0)
print("mat1:\n", mat1)
myDat = regTrees.loadDataSet('ex00.txt')
myDat = mat(myDat)
print("\ncreateTree for ex00:\n", regTrees.createTree(myDat))
myDat = regTrees.loadDataSet('ex0.txt')
myDat = mat(myDat)
print("\ncreateTree for ex0:\n", regTrees.createTree(myDat))
####################prepuning
print("\nPrepruning\n###########")
print("\nOps(0,1):\n", createTree(myDat, ops=(0, 1)))
#########################ex2
myDat2 = loadDataSet('ex2.txt')
myDat2 = mat(myDat2)
print("\nmyData2 : \n", createTree(myDat2))
#myDat2 = regTrees.loadDataSet('ex2.txt')
#myDat2 = regTrees.loadDataSet('ex2.txt')
#myMat2 = mat(myDat2, )
#print myDat2
#print regTrees.createTree(myMat2, ops=(10000,4))
#model tree
#myMat2 = mat(regTrees.loadDataSet('exp2.txt'))
#print regTrees.createTree(myMat2, regTrees.modelLeaf, regTrees.modelErr, (1,10))
trainMat = mat(regTrees.loadDataSet('bikeSpeedVsIq_train.txt'))
testMat = mat(regTrees.loadDataSet('bikeSpeedVsIq_test.txt'))
myTree = regTrees.createTree(trainMat, ops=(1,20))
#print myTree
#___REGRES TREE___
yHat = regTrees.createForeCast(myTree, testMat[:,0])
#print yHat
print corrcoef(yHat, testMat[:,1], rowvar=0)[0,1]
#___MODEL TREE___
myTree = regTrees.createTree(trainMat, regTrees.modelLeaf, regTrees.modelErr, (1,20))
yHat = regTrees.createForeCast(myTree, testMat[:,0], regTrees.modelTreeEval)
print corrcoef(yHat, testMat[:,1], rowvar=0)[0,1]
#___STAND REGRES___
ws,X,Y = regTrees.linearSolve(trainMat)
print "ws=",ws
for i in range(shape(testMat)[0]):
import regTrees
from numpy import *
myMat2 = mat(regTrees.loadDataSet('exp2.txt'))
print(regTrees.createTree(myMat2, regTrees.modelLeaf, regTrees.modelErr, \
(1, 10)))
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, '4')
Label(root, text="tolS").grid(row=3, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=3, column=1)
tolSentry.insert(0, '1.0')
Label(root, text="prune").grid(row=5, column=0)
need_prune = Entry(root)
need_prune.grid(row=5, column=1)
need_prune.insert(0, 'false')
Button(root, text="ReDraw", command=drawNewTree).grid(row=1,
column=2,
rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable=chkBtnVar)
chkBtn.grid(row=7, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet('train.txt'))
reDraw.testDat = mat(regTrees.loadDataSet('test.txt'))
reDraw.testX = arange(min(reDraw.testDat[:, 0]), max(reDraw.testDat[:, 0]),
0.01)
reDraw(1.0, 4)
root.mainloop()
def drawNewTree():
tolN, tolS = getInputs() # get values from Entry boxes
reDraw(tolS, tolN)
root = Tk()
reDraw.f = Figure(figsize=(5, 4), dpi=100) # create canvas
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, "10")
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0, "1.0")
Button(root, text="ReDraw", command=drawNewTree).grid(row=1, column=2, rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable=chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet("sine.txt"))
reDraw.testDat = arange(min(reDraw.rawDat[:, 0]), max(reDraw.rawDat[:, 0]), 0.01)
reDraw(1.0, 10)
root.mainloop()
import regTrees
from numpy import *
# mydat = regTrees.loadDataSet('ex00.txt')
# mydat = mat(mydat)
# print(regTrees.createTree(mydat))
#
# testmat = mat(eye(4))
# mat0,mat1 = regTrees.binSplitDataSet(testmat,1,0.5)
# print(mat0,mat1)
mydat = regTrees.loadDataSet('ex2.txt')
mydat = mat(mydat)
mytree = regTrees.createTree(mydat, ops=(0, 1))
mytest = regTrees.loadDataSet('ex2test.txt')
mytest = mat(mytest)
print(regTrees.prune(mytree, mytest))
root=Tk()
reDraw.f = Figure(figsize=(5,4), dpi=100) #create canvas
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0,'10')
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0,'1.0')
Button(root, text="ReDraw", command=drawNewTree).grid(row=1, column=2, rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable = chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet('sine.txt'))
reDraw.testDat = arange(min(reDraw.rawDat[:,0]),max(reDraw.rawDat[:,0]),0.01)
dataSet = []
for data in reDraw.testDat:
datList = []
datList.append(data)
dataSet.append(datList)
reDraw.testDat = dataSet
reDraw(1.0, 10)
root.mainloop()
def drawNewTree():
tolN, tolS = getInputs() # 从输入文本框中获取参数
reDraw(tolS, tolN) # 绘制图
root = Tk()
reDraw.f = Figure(figsize=(5, 4), dpi=100) # 创建画布
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, '10')
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0, '1.0')
Button(root, text="ReDraw", command=drawNewTree).grid(row=1,
column=2,
rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable=chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(re.loadDataSet('sine.txt'))
reDraw.testDat = arange(min(reDraw.rawDat[:, 0]), max(reDraw.rawDat[:, 0]),
0.01)
reDraw(1.0, 10)
root.mainloop()
def drawNewTree(): # 有人点击ReDraw按钮时就会调用该函数
tolN, tolS = getInputs() # 得到输入框的值
reDraw(tolS, tolN)
root = Tk()
# Label(root, text="绘制占位符").grid(row=0, columnspan=3) # 设置文本，第0行，距0的行值为3,
reDraw.f = Figure(figsize=(5, 4), dpi=100)
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.draw()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root) # Entry为允许单行文本输入的文本框，设置文本框，再定位置第1行第1列，再插入数值
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, "10")
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0, "1.0")
Button(root, text="重画", command=drawNewTree).grid(row=1, column=2, rowspan=3) # Botton按钮，设置第1行第2列，列值为3
chkBtnVar = IntVar() # IntVar为按钮整数值小部件
chkBtn = Checkbutton(root, text="模型树", variable=chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet("sine.txt"))
reDraw.testDat = arange(min(reDraw.rawDat[:, 0]), max(reDraw.rawDat[:, 0]), 0.01)
reDraw(1.0, 10)
root.mainloop()
reDraw(tolS,tolN)
root=Tk()
reDraw.f = Figure(figsize=(5,4), dpi=100) #create canvas
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)#cloumnspan：为跨列
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0,'10')
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0,'1.0')
Button(root, text="ReDraw", command=drawNewTree).grid(row=1, column=2, rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable = chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet('sine.txt')) #python中的函数也可以有变量
reDraw.testDat = arange(min(reDraw.rawDat[:,0]),max(reDraw.rawDat[:,0]),0.01) #从原数据集的范围中产生
reDraw(1.0, 10)
root.mainloop()
if __name__=='__main__':
print u'合用tkinter与matplotlib集成..'
import regTrees
from numpy import *
myDat=regTrees.loadDataSet('ex00.txt')
myMat = mat(myDat)
tree = regTrees.createTree(myMat)
print "%s" % tree
myDat1=regTrees.loadDataSet('ex0.txt')
myMat1=mat(myDat1)
tree2 = regTrees.createTree(myMat1)
print "%s" % tree2
root = Tk()
fig = plt.figure(figsize=(5, 4), dpi=100) #默认是dpi=80
canvas = FigureCanvasTkAgg(fig, root)
canvas.show()
canvas.get_tk_widget().grid(row=1, columnspan=3)
Label(root, text="Plot Place Holder").grid(row=0, columnspan=3)
Label(root, text="tolS").grid(row=2, column=0)
tolSEntry = Entry(root)
tolSEntry.grid(row=2, column=1)
tolSEntry.insert(0, 1.0)
Label(root, text="tolN").grid(row=3, column=0)
tolNEntry = Entry(root)
tolNEntry.grid(row=3, column=1)
tolNEntry.insert(0, 10)
Button(root, text="ReDraw", command=drawNewTree).grid(row=3,
column=2,
columnspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable=chkBtnVar)
chkBtn.grid(row=4, columnspan=3)
loadData = mat(regTrees.loadDataSet("sine.txt")) #放在reDraw函数外，只需一开始加载一次数据
testData = arange(min(loadData[:, 0]), max(loadData[:, 0]), 0.01)
#
reDraw(1.0, 10)
root.mainloop()
# regTreesTest.py
import regTrees
from numpy import *
myDat = regTrees.loadDataSet('ex00.txt')
tMat = mat(myDat)
print('-------- loadDataSet regLeaf : ')
print(regTrees.regLeaf(tMat))
print('-------- loadDataSet regErr : ')
print(regTrees.regErr(tMat))
print('-------- tMat : ')
print(tMat)
myTree = regTrees.createTree(tMat)
print('-------- regTree createTree : ')
print(myTree)
myDat2 = regTrees.loadDataSet('ex2.txt')
myMat2 = mat(myDat2)
myTree2 = regTrees.createTree(myMat2, ops=(0, 1))
print('-------- regTree createTree2 : ')
print(myTree2)
myDat3 = regTrees.loadDataSet('ex2test.txt')
myMat2Test = mat(myDat3)
def reDraw(tolS, tolN):
pass
def drawNewTree():
pass
root = Tk()
Label(root, text="Plot Place Holder").grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, '10')
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0, '1.0')
Button(root, text="ReDraw", command=drawNewTree).grid(row=1,
column=2,
rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable=chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet(homedir + 'sine.txt'))
reDraw.testDat = arange(min(reDraw.rawDat[:, 0]), max(reDraw.rawDat[:, 0]),
0.01)
reDraw(1.0, 10)
root.mainloop()
def main():
import regTrees
from numpy import mat
myDat = regTrees.loadDataSet('/home/jerry/ml_in_action/CART/ex00.txt')
myMat = mat(myDat)
print(regTrees.createTree(myMat))
# This Python file uses the following encoding: utf-8
import os, sys
import regTrees
from numpy import *
from Tkinter import *
root=Tk()
Label(root,text="Plot Place Holder").grid(row=0,columnspan=3)
Label(root,text="tolN").grid(row=1,column=0)
tolNentry=Entry(root)
tolNentry.grid(row=1,column=1)
tolNentry.insert(0,"10")
Label(root,text="tolS").grid(row=2,column=0)
tolSentry=Entry(root)
tolSentry.grid(row=2,column=1)
tolSentry.insert(0,"0.1")
reDraw.rawDat=mat(regTrees.loadDataSet("C:\Users\YAN\Desktop\Cart\sine.txt"))
reDraw.testDat=arange(min(reDraw.rawDat[:,0]),max(reDraw.rawDat[:,0]),0.01)
Button(root,text="ReDraw",command=drawNewTree).grid(row=1,column=2,rowspan=3)
chkBtnVar=IntVar()#按钮数值键
chkBtn=Checkbutton(root,text="Model Tree",variable=chkBtnVar)
chkBtn.grid(row=3,column=0,columnspan=2)
import matplotlib
matplotlib.use("Tkagg")
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib.figure import Figure
def reDraw(tolS,tolN):
reDraw.rawDat=mat(regTrees.loadDataSet("C:\Users\YAN\Desktop\Cart\sine.txt"))
reDraw.testDat=arange(min(reDraw.rawDat[:,0]),max(reDraw.rawDat[:,0]),0.01)
reDraw.f.clf()
reDraw.a=reDraw.f.add_subplot(111)
import regTrees
from numpy import *
testMat = mat(eye(4))
print testMat
mat0, mat1 = regTrees.binSplitDataSet(testMat, 1, 0.5)
print mat0
print mat1
myDat = regTrees.loadDataSet('ex00.txt')
myMat = mat(myDat)
print regTrees.createTree(myMat)
myDat1 = regTrees.loadDataSet('ex0.txt')
myMat1 = mat(myDat1)
print regTrees.createTree(myMat1)
#print regTrees.createTree(myMat, ops=(0,1))
myDat2 = regTrees.loadDataSet('ex2.txt')
myMat2 = mat(myDat2)
#print regTrees.createTree(myMat2)
print regTrees.createTree(myMat2, ops=(10000, 4))
myTree = regTrees.createTree(myMat2, ops=(0, 1))
myDatTest = regTrees.loadDataSet('ex2test.txt')
myMat2Test = mat(myDatTest)
print regTrees.prune(myTree, myMat2Test)
myMat2 = mat(regTrees.loadDataSet('exp2.txt'))
print regTrees.createTree(myMat2, regTrees.modelLeaf, regTrees.modelErr,
(1, 10))
import regTrees
from numpy import *
myDat = regTrees.loadDataSet('ex00.txt')
myMat = mat(myDat)
print regTrees.createTree(myMat)
ops = (1, 4)
print(ops)
import regTrees
import numpy as np
testMat = np.mat(np.eye((4)))
# print(testMat)
# mat0 ,mat1 = regTrees.binSplitDataSet(testMat,1,0.5)
# print(mat0)
# print(mat1)
myDat = regTrees.loadDataSet('ex00.txt')
myMat = np.mat(myDat)
# print(regTrees.createTree(myMat))
myDat1 = regTrees.loadDataSet('ex0.txt')
myMat1 = np.mat(myDat1)
# print(regTrees.createTree(myMat1))
myDat2 = regTrees.loadDataSet('ex2.txt')
myMat2 = np.mat(myDat2)
myTree = regTrees.createTree(myMat2, ops=(0, 1))
myDatTest = regTrees.loadDataSet('ex2test.txt')
myMat2Test = np.mat(myDatTest)
print(regTrees.prune(myTree, myMat2Test))
#!/usr/bin/env python3
#-*- coding:UTF-8 -*-
import regTrees
from numpy import *
testMat=mat(eye(4))
print(testMat)
mat0,mat1=regTrees.binSplitDataSet(testMat,1,0.5)#1为特征下标，0.5为阈值
print("mat0=\n",mat0)
print("mat1=\n",mat1)
myDat=regTrees.loadDataSet('ex00.txt')
#print(myDat)
myMat=mat(myDat)
print("myMat size:",shape(myMat))
#print(myMat)
print(regTrees.createTree(myMat))
print("ex0.txt")
myDat1=regTrees.loadDataSet('ex0.txt')
myMat1=mat(myDat1)
print(shape(myMat1))#200 3
print(regTrees.createTree(myMat1))
#建树完成
myDat2=regTrees.loadDataSet('ex2.txt')
myMat2=mat(myDat2)
print(regTrees.createTree(myMat2))
myTree=regTrees.createTree(myMat2,ops=(0,1))
myDatTest=regTrees.loadDataSet('ex2test.txt')
def drawNewTree():
tolN,tolS = getInputs()#get values from Entry boxes
reDraw(tolS,tolN)
root=Tk()
reDraw.f = Figure(figsize=(5,4), dpi=100) #create canvas
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0,'10')
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0,'1.0')
Button(root, text="ReDraw", command=drawNewTree).grid(row=1, column=2, rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable = chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet('/home/wangxy/data/sine.txt'))
reDraw.testDat = arange(min(reDraw.rawDat[:,0]),max(reDraw.rawDat[:,0]),0.01)
reDraw(1.0, 10)
root.mainloop()
reDraw(tolS, tolN)
root = Tk()
reDraw.f = Figure(figsize=(5, 4), dpi=100) #create canvas
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0, '10')
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0, '1.0')
Button(root, text="ReDraw", command=drawNewTree).grid(row=1,
column=2,
rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable=chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet('sine.txt'))
reDraw.testDat = arange(min(reDraw.rawDat[:, 0]), max(reDraw.rawDat[:, 0]),
0.01)
reDraw(1.0, 10)
root.mainloop()
def drawNewTree():
tolN,tolS = getInputs()#get values from Entry boxes
reDraw(tolS,tolN)
root=Tk()
reDraw.f = Figure(figsize=(5,4), dpi=100) #create canvas
reDraw.canvas = FigureCanvasTkAgg(reDraw.f, master=root)
reDraw.canvas.show()
reDraw.canvas.get_tk_widget().grid(row=0, columnspan=3)
Label(root, text="tolN").grid(row=1, column=0)
tolNentry = Entry(root)
tolNentry.grid(row=1, column=1)
tolNentry.insert(0,'10')
Label(root, text="tolS").grid(row=2, column=0)
tolSentry = Entry(root)
tolSentry.grid(row=2, column=1)
tolSentry.insert(0,'1.0')
Button(root, text="ReDraw", command=drawNewTree).grid(row=1, column=2, rowspan=3)
chkBtnVar = IntVar()
chkBtn = Checkbutton(root, text="Model Tree", variable = chkBtnVar)
chkBtn.grid(row=3, column=0, columnspan=2)
reDraw.rawDat = mat(regTrees.loadDataSet("C:/Users/Administrator/Desktop/season2/period2/user_purchase_and_redeem_table/purchase/4month.txt"))
reDraw.testDat = arange(min(reDraw.rawDat[:,0]),max(reDraw.rawDat[:,0]),0.01)
reDraw(1.0, 10)
root.mainloop()