Function loadDataSet

src/python/13.PCA/pca.py:15–19

(fileName, delim='\t')

def loadDataSet(fileName, delim='\t'):
    fr = open(fileName)
    stringArr = [line.strip().split(delim) for line in fr.readlines()]
    datArr = [map(float, line) for line in stringArr]
    return mat(datArr)


def pca(dataMat, topNfeat=9999999):