ValueError

[ljapkin-roman]

I read the book "Machine Learning in action" and repeat code from the chapter 2 kNN, but i got error
"ValueError: could not convert string to float:" on the string

machinelearninginaction3x/Ch02/kNN.py

Line 48 in c1ea22f

returnMat[index, :] = listFromLine[0:3]

I read doc numpy.zeros and i'm get that a numpy matrix has only float value.