Load a text file into a numpy array

Question

I have 256 x 8 text file, i want to fetch it into np array(256,8), with int cast

    import numpy as np
    import cv2.cv2 as cv2
    import math
    import matplotlib.pyplot as plt

np.loadtxt(fname='data.txt')

then i get this error: could not convert string to float: '200.35,159.32,200.35,113.74,245.48,113.74,245.48,159.32'

The default delimiter in loadtxt is white space, not comma. — hpaulj
– hpaulj, Commented Dec 3, 2019 at 23:45

alkasm · Accepted Answer · 2019-12-04 01:17:07Z

3

You need to split the strings into its separate values. loadtxt has a parameter that does this:

np.loadtxt(fname='data.txt', delimiter=',')

This splits each row at the comma so that each number can be read as a separate value.

edited Dec 4, 2019 at 1:17

alkasm

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answered Dec 3, 2019 at 23:42

user83701

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alkasm Over a year ago

Welcome to Stack Overflow! As a suggestion, consider linking to the relevant docs so that users can see up-to-date information about the keyword args and know where to find information later :)

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