Jun 11, 2012 · In Python 2 map(), will iterate (go through the elements of the lists) according to the longest list, and pass None to the function for the shorter lists, so your function should look …

Jun 13, 2022 · But first let's state the obvious: no matter how you map a Python-function onto a numpy-array, it stays a Python function, that means for every evaluation: numpy-array element …

map(func, *iterables) --> map object Make an iterator that computes the function using arguments from each of the iterables. Stops when the shortest iterable is exhausted. "Make an iterator" …

we want to apply map function for an array. map(add, [1, 2, 3], 2) The semantics are I want to add 2 to every element of the array. But the map function requires a list in the third argument as …

Oct 17, 2021 · I would like to vectorize a function which applies some simple filtering logic to a numpy array: import numpy def func(arr, a, b): sub = arr[arr[:,a] > b] mean = …

I'm trying to understand how functional programming languages work, and I decided to take the approach of program in a functional way in python, as it is the language in which I feel more …

That's why you can **2 an entire array there. Other possible solutions would be map-based, but in this case I'd really go for the list comprehension. It's Pythonic :) and a map-based solution that …

The array is a reference to the image pixel values, not a copy of it, so I need to change the array I got from pygame if I want my image/sprite to be modify in the scene. That said, this is my very …

Oct 16, 2022 · Using Matplotlib, I want to plot a 2D heat map. My data is an n-by-n Numpy array, each with a value between 0 and 1. So for the (i, j) element of this array, I want to plot a …

Jun 30, 2015 · map requires the creation of a lambda function for the computation, which is visually noisy." I would add the same goes for filter. e.g. let's say I want to map and filter over …