## How to create a numpy array of all True or all False?

In Python, how do I create a numpy array of arbitrary shape filled with all True or all False? 7 Answers 7

## How do I calculate percentiles with python/numpy?

Is there a convenient way to calculate percentiles for a sequence or single-dimensional numpy array? I am looking for something similar to Excel’s … Read more

## Convert array of indices to 1-hot encoded numpy array

Let’s say I have a 1d numpy array a = array([1,0,3]) I would like to encode this as a 2D one-hot array b … Read more

## Better way to shuffle two numpy arrays in unison

I have two numpy arrays of different shapes, but with the same length (leading dimension). I want to shuffle each of them, such … Read more

## How does numpy.newaxis work and when to use it?

When I try numpy.newaxis the result gives me a 2-d plot frame with x-axis from 0 to 1. However, when I try using … Read more

## What is the difference between ndarray and array in numpy?

What is the difference between ndarray and array in Numpy? And where can I find the implementations in the numpy source code? 5 … Read more

## Concatenating two one-dimensional NumPy arrays

I have two simple one-dimensional arrays in NumPy. I should be able to concatenate them using numpy.concatenate. But I get this error for … Read more

## How to convert a PIL Image into a numpy array?

Alright, I’m toying around with converting a PIL image object back and forth to a numpy array so I can do some faster … Read more

## What is the difference between flatten and ravel functions in numpy?

import numpy as np y = np.array(((1,2,3),(4,5,6),(7,8,9))) OUTPUT: print(y.flatten()) [1 2 3 4 5 6 7 8 9] print(y.ravel()) [1 2 3 4 … Read more

## What is the purpose of meshgrid in Python / NumPy?

Can someone explain to me what is the purpose of meshgrid function in Numpy? I know it creates some kind of grid of … Read more