All Questions

I'm working with 3D numpy arrays and having trouble stacking two of them. Here’s what I’m trying to do: import numpy as np grid = np.arange(16).reshape((1, 4, 4)) grid2 = grid[:, :-1, ::-1].copy() I ...

I want to compute pairwise quantities, e.g. distances between two points. A simple example would be import numpy as np N = 9 x = np.linspace(0,1,N) y = np.abs(x - x[:,None]) # pairwise 1d eucdlidian ...

I used Python with Numpy to create an array filled with numbers from a tuple, and set it up to be a 4x4 matrix. numbers = (-8, -3, -5, 0, 4, 5, 6, 10, 7,8, 9, 100, 10, 11, 12, 1000) numbers_array = ...

import numpy as np ar1 = np.array([[[1,2,3],[4,5,6]],[[1,2,3],[4,5,6]]]) ar2 = np.array([[[1,2,3],[4,5,6]],[[1,2,3,4],[4,5,6,7]]]) print(ar1) print(ar2) When I run this the second array prints out ...

I have to work with the learning history of a Keras model. This is a basic task, but I've measured the performance of the Python built-in min() function, the numpy.min() function, and the numpy ...

I have a two-dimensional array A, and another two-dimensional array I where each row corresponds to a set of indices with which I want to extract symmetric two-dimensional subarrays from A. I want to ...

I have some code that finds the indices of elements in the "input" list that match any element in the "values" list. The indices are then outputted, arranged in the same order as ...

I have an array called result that has a shape of (1200,67,67). Along the axis with length 1200 the array is correct. However, the other two axis have been flipped. I am getting: result[0,:,:] = array(...

I have been studying for numpy library in python. I used the code import numpy as np arr=np.array([(11,12,13),(17,18,19)]) arr.size and it's output is 6 That is right but when I run import numpy as ...

I have a 3D numpy array of shape [N,N,N]. I want to split it into subcubes of size [n,n,n] and store them in an array of shape [N_subcubes, n, n, n, 1]. I also would like each subcube to overlap the ...

I always get find myself in state of confusion when dealing with a multi-dimensional array. Imaging having the following array of arrays, where each array contains feature importance scores (3-...

I am considering arrays of shape (n,2) for arbitrary n. I want to check whether the two-element sub-arrays match. As an example: import numpy as np a=np.array([[1,0],[2,0]]) b=np.array([[1,0],[2,0]]) ...

My task in python was to "Write a median_fits function which takes a list of FITS filenames, loads them into a NumPy array, and calculates the median image (where each pixel is the median of that ...

I have an array: > a array([[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12], [13, 14, 15, 16]], [[17, 18, 19, 20], [21, 22, 23, 24], [25, 26, 27, 28], ...

I have an array: > a array([[1, 2, 3], [2, 3, 4], [3, 4, 5]]) I want to change those values to the avarage of those values, so the output will be: > a array([[2, 2, 2], [3, 3, 3], [4, 4, 4]]) ...