本文整理匯總了Python中KNN.file2matrix方法的典型用法代碼示例。如果您正苦於以下問題：Python KNN.file2matrix方法的具體用法？Python KNN.file2matrix怎麽用？Python KNN.file2matrix使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類KNN的用法示例。
在下文中一共展示了KNN.file2matrix方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: plotwithlable
# 需要導入模塊: import KNN [as 別名]
# 或者: from KNN import file2matrix [as 別名]
def plotwithlable():
xcord1 = []; ycord1 = []; zcord1=[]
xcord2 = []; ycord2 = []; zcord2=[]
xcord3 = []; ycord3 = []; zcord3=[]
#group ,labels = createDataSet()
datingDataMat, datingLables = KNN.file2matrix('datingTestSet2.txt')
#print(datingDataMat)
#print(datingDataMat[0,2])
#print(datingLables)
normDataMat, ranges, minVals = KNN.autoNorm(datingDataMat)
#print(normDataMat)
tmp = datingDataMat
datingDataMat = normDataMat
fig = plt.figure() #create pic: fig
ax = fig.add_subplot(311) #create a subplot with 1 row 1 colum, select pic 1
#type1 = ax.scatter(xcord1, ycord1, s=20, c='red')
#type2 = ax.scatter(xcord2, ycord2, s=30, c='green')
#type3 = ax.scatter(xcord3, ycord3, s=50, c='blue')
for index, value in enumerate(datingLables):
if value == 1:
xcord1.append(datingDataMat[index,0])
ycord1.append(datingDataMat[index,1])
zcord1.append(datingDataMat[index,2])
elif value == 2:
xcord2.append(datingDataMat[index,0])
ycord2.append(datingDataMat[index,1])
zcord2.append(datingDataMat[index,2])
else:
xcord3.append(datingDataMat[index,0])
ycord3.append(datingDataMat[index,1])
zcord3.append(datingDataMat[index,2])
type1 = ax.scatter(xcord1, ycord1, s=20, c='red')
type2 = ax.scatter(xcord2, ycord2, s=30, c='green')
type3 = ax.scatter(xcord3, ycord3, s=50, c='blue')
ax.legend([type1, type2, type3], ["Did Not Like", "Liked in Small Doses", "Liked in Large Doses"], loc=2)
ax2 = fig.add_subplot(312)
type1 = ax2.scatter(xcord1, zcord1, s=20, c='red')
type2 = ax2.scatter(xcord2, zcord2, s=30, c='green')
type3 = ax2.scatter(xcord3, zcord3, s=50, c='blue')
ax2.legend([type1, type2, type3], ["Did Not Like", "Liked in Small Doses", "Liked in Large Doses"], loc=2)
plt.xlabel("Frequent Flyier Miles Earned Per Year")
plt.ylabel("Liters of Ice Cream Consumed Per Week")
ax3 = fig.add_subplot(313)
type1 = ax3.scatter(ycord1, zcord1, s=20, c='red')
type2 = ax3.scatter(ycord2, zcord2, s=30, c='green')
type3 = ax3.scatter(ycord3, zcord3, s=50, c='blue')
ax3.legend([type1, type2, type3], ["Did Not Like", "Liked in Small Doses", "Liked in Large Doses"], loc=2)
plt.xlabel("Percentage of Body Covered By Tatoos")
plt.ylabel("Liters of Ice Cream Consumed Per Week")
plt.show()示例2: classifyPerson
# 需要導入模塊: import KNN [as 別名]
# 或者: from KNN import file2matrix [as 別名]
def classifyPerson():
print "輸入相關信息"
resultList = ['一點不喜歡','有點希望','可能性很大']
percentTats = float(raw_input("玩遊戲時間數目?"))
ffMiles = float(raw_input("旅遊公路數?"))
ice = float(raw_input("冰淇淋消耗量?"))
datingDataMat,datingLabels = KNN.file2matrix('datingTestSet2.txt')
normMat,ranges,minVals = KNN.autoNorm(datingDataMat)
inArr = np.array([ffMiles,percentTats,ice])
classfierRt = KNN.classify0((inArr-minVals)/ranges,normMat,datingLabels,3)
print resultList[classfierRt - 1]
PrintFigure(normMat, datingLabels)示例3:
# 需要導入模塊: import KNN [as 別名]
# 或者: from KNN import file2matrix [as 別名]
from numpy import *
import KNN
import matplotlib
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111)
datingDataMat,datingLabels,datingLabelsInt = KNN.file2matrix(
'../SourceCode2/Ch02/datingTestSet.txt')
ax.scatter(datingDataMat[:,0], datingDataMat[:,1], s=15.0*datingLabelsInt
,marker='^', c=datingLabelsInt)
# ax.axis([-2, 60000, -0.2, 16])
plt.xlabel('Percentage of Time Spent Playing Video Games')
plt.ylabel('Liters of Ice Cream Consumed Per Week')
plt.legend()
plt.show()
示例4: array
# 需要導入模塊: import KNN [as 別名]
# 或者: from KNN import file2matrix [as 別名]
"""
Created on Oct 27, 2010
@author: Peter
"""
from numpy import *
import KNN
import matplotlib
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111)
datingDataMat, datingLabels = KNN.file2matrix("datingTestSet.txt")
# ax.scatter(datingDataMat[:,1], datingDataMat[:,2])
ax.scatter(datingDataMat[:, 1], datingDataMat[:, 2], 15.0 * array(datingLabels), 15.0 * array(datingLabels))
ax.axis([-2, 25, -0.2, 2.0])
plt.xlabel("Percentage of Time Spent Playing Video Games")
plt.ylabel("Liters of Ice Cream Consumed Per Week")
plt.show()