我正在运行以下代码:
from numpy import *
import operator
def file2matrix(filename):
fr = open(filename)
arrayOLines = fr.readlines()
numberOfLines = len(arrayOLines) #get the number of lines in the file
returnMat = zeros((numberOfLines,3)) #prepare matrix to return
classLabelVector = [] #prepare labels return
print numberOfLines
index = 0
for line in arrayOLines:
line = line.strip()
listFromLine = line.split('\t')
print index
## print listFromLine
## returnMat[index ,0] = listFromLine[0]
returnMat[index,:] =['XX','XY','XZ']
## returnMat[index ,2] = listFromLine[2]
## returnMat[index ,3] = listFromLine[3]
classLabelVector.append(listFromLine[0])
index += 1
return returnMat,classLabelVector
第二个代码是:
import my_bayes as kNN
datingDataMat,datingLabels = kNN.file2matrix('train.txt')
错误是:
ValueError: could not convert string to float: XX`
答案 0 :(得分:0)
该行:
returnMat[index,:] =['XX','XY','XZ']
将所有矩阵值设置为字符串。