Jul 12, 2011 · Coming from other languages: it IS a difference between an 1D-Array containing 1D-Arrays and a 2D-Array. And AFAIK there is no way of having a multi-dimensional-array (or …

For Mike Graham's comment about [foo] * 10: This means that this wouldn't work if you're filling an array with random numbers (evaluates [random.randint(1,2)] * 10 to [1] * 10 or [2] * 10 …

Jul 20, 2015 · I'm trying to generate a 2d numpy array with the help of generators: x = [[f(a) for a in g(b)] for b in c] And if I try to do something like this: x = np.array([np.array([f(a) for a in g(b)]) …

Nov 13, 2015 · Creating a 2d NumPy array (Python) 0. Python creating 2D array. Hot Network Questions Meaning of "getrimmt

If you wish to combine two 10 element one-dimensional arrays into a two-dimensional array, np.vstack((tp, fp)).T will do it. np.vstack((tp, fp)) will return an array of shape (2, 10), and the T …

Oct 3, 2009 · @AndersonGreen As I said there's no such thing as a variable declaration in Python. You would create a multidimensional list by taking an empty list and putting other lists …

Nov 17, 2015 · I have a data frame with 9 columns and ~100000 rows. The data was extracted from an image, such that two columns ('row' and 'col') are referring to the pixel position of the …

May 11, 2018 · Creating a 2d Array in Python-1. 2D array/list in python. 2. Generate 2D array in different ways-1. Create ...

I want to know how to declare a two dimensional array in Python. arr = [[]] arr[0].append("aa1") arr[0].append("aa2") arr[1].append("bb1") arr[1].append("bb2") arr[1 ...

In Python one would usually use lists for this purpose. Lists can be nested arbitrarily, thus allowing the creation of a 2D array. Not every sublist needs to be the same size, so that solves your …