簡單的Tkinter庫創(chuàng)建GUI的例子可參考：
http://blog.csdn.net/lilong117194/article/details/78456376

下面是代碼：

# -*- coding: utf-8 -*- """ Created on Mon Nov 06 10:24:42 2017""" from numpy import * from Tkinter import * import regTrees import matplotlib # 導(dǎo)入matplot文件 matplotlib.use('TkAgg') # 設(shè)置后端TkAgg # 將TkAgg和matplotlib圖鏈接起來 from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg from matplotlib.figure import Figure# 繪制樹 def reDraw(tolS,tolN): reDraw.f.clf() # 清空之前的圖像reDraw.a = reDraw.f.add_subplot(111) # 各個(gè)子圖像也被清除，重新添加新圖if chkBtnVar.get(): # 檢查復(fù)選框是否被選中if tolN < 2: tolN = 2myTree=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) # 繪制真實(shí)值reDraw.a.plot(reDraw.testDat, yHat, linewidth=2.0) # 繪制預(yù)測值reDraw.canvas.show()def getInputs(): # 獲取用戶輸入try: tolN = int(tolNentry.get()) # 期望輸入是整數(shù)，在Entry部件上調(diào)用.get()方法except: # 清除錯(cuò)誤用默認(rèn)值替換tolN = 10 print "enter Integer for tolN" tolNentry.delete(0, END) # 清除錯(cuò)誤得輸入，并恢復(fù)默認(rèn)值tolNentry.insert(0,'10')try: tolS = float(tolSentry.get()) # 期望輸入是浮點(diǎn)數(shù)except: tolS = 1.0 print "enter Float for tolS"tolSentry.delete(0, END) tolSentry.insert(0,'1.0')return tolN,tolS # 返回用戶的輸入值def drawNewTree(): # 從輸入文本框中獲取參數(shù)tolN,tolS = getInputs() # 該方法得到輸入框的值reDraw(tolS,tolN) # 調(diào)用reDraw繪制圖# 布局GUI代碼 root=Tk()# 創(chuàng)建一個(gè)TK類型的根部件 reDraw.f = Figure(figsize=(5,4), dpi=100) # 創(chuàng)建畫布 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) # grid方法設(shè)置行和列的位置 tolNentry = Entry(root) # Entry：允許單行輸入的文本輸入框 tolNentry.grid(row=1, column=1) # 設(shè)置文本框的位置 tolNentry.insert(0,'10') Label(root, text="tolS").grid(row=2, column=0) tolSentry = Entry(root) # 文本輸入框放在root中 tolSentry.grid(row=2, column=1) tolSentry.insert(0,'1.0') # 點(diǎn)擊ReDraw按鈕時(shí)，就調(diào)用drawNewTree()函數(shù) Button(root, text="ReDraw", command=drawNewTree).grid(row=1, column=2, rowspan=3)chkBtnVar = IntVar() # 按鈕整數(shù)值，為了讀取Checkbutton的值 chkBtn = Checkbutton(root, text="Model Tree", variable = chkBtnVar) # Checkbutton復(fù)選按鈕 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()

運(yùn)行結(jié)果：

分類回歸樹：

模型樹：

構(gòu)建盡可能大的樹：

注意：這里的import regTrees用的是《機(jī)器學(xué)習(xí)實(shí)戰(zhàn)》里的源碼，但是有兩處需要改動(dòng)的地方，具體查看：
http://blog.csdn.net/lilong117194/article/details/78444615

通過GUI可以更友好的調(diào)節(jié)參數(shù)和模型來訓(xùn)練模型和學(xué)習(xí)算法。。

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