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I'm rendering a dynamically changing numpy bitmap array and trying to improve my framerate. Cur… Read more Efficiently Render 3d Numpy Bitmap Array (y, X, Rgb) To Window On Macos (using Opencv Or Otherwise)

I have 2 saved .npy files: X_train - (18873, 224, 224, 3) - 21.2GB Y_train - (18873,) - 148KB X_tr… Read more Shuffling And Importing Few Rows Of A Saved Numpy File

I have a numpy arrary: import numpy as np pval=np.array([[0., 0.,0., 0., 0.,0., 0., 0.], … Read more Numpy Vertical Function :'float' Object Is Not Subscriptable

So, i simply want to make this faster: for x in range(matrix.shape[0]): for y in range(matr… Read more How To Faster Iterate Over A Python Numpy.ndarray With 2 Dimensions

I came across a code where the author have used the ellipsis operator (e.g., [..., 1]) with numpy a… Read more What Is The Difference Between The `slice` (:) And The `ellipsis` (...) Operators In `numpy`?

Despite there being a number of similar questions related to iterating over a 3D array and after tr… Read more Iterating Over 3d Numpy Using One Dimension As Iterator Remaining Dimensions In The Loop

I'm optimising my implementation of the back-propagation algorithm to train a neural network. O… Read more Python: Numpy.dot / Numpy.tensordot For Multidimensional Arrays

I have a numpy array which I initialized outside the loop using np.zeros. This array is updated usi… Read more How Do I Plot An Updating Numpy Ndarray In Real Time Using Matplotlib?

As my MWE below shows, calling np.array(a, copy=False) on an existing array a returns something tha… Read more How Come Not-copying A Numpy Array Changes The Data Attribute?

I have a C++ code which execute python script with boost_python package. Everything is fine, as lon… Read more Boost Python - Nullptr While Extracting Ndarray

In Pytorch 1.0.0, I found that a tensor variable occupies very small memory. I wonder how it stores… Read more Pytorch: Why Is The Memory Occupied By The `tensor` Variable So Small?