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Load data from txt file
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# Load data | |
def loadDataSet(filename): | |
""" | |
load dataset into data-matrix and label-matrix | |
Parameters | |
---------- | |
filename : String | |
File path containing the data | |
Returns | |
------- | |
dataLabel : collections | |
a simple class which represents the data-matrix and label-matrix | |
""" | |
#use collections.namedtuple to construct a simple class to represent each data matrix | |
data = collections.namedtuple('data',['dataMat','labelMat']) | |
with open(filename) as file: | |
numFeat = len(file.readline().split('\t')) - 1 # Assumes last value is the taget(-1) | |
dataMat = []; labelMat = [] | |
with open(filename) as file: | |
for line in file.readlines(): | |
lineArr = [] | |
curLine = line.strip().split('\t') | |
[lineArr.append(float(curLine[i])) for i in range(numFeat)] | |
dataMat.append(lineArr) | |
labelMat.append(float(curLine[-1])) | |
dataLabel = data(dataMat, labelMat) | |
return dataLabel | |
filename = 'ex0.txt' | |
# Access data as data.datamat and label as data.labelMat | |
data = loadDataSet(filename) |
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