# NumPy

## How to sort NumPy array by column

You can sort the NumPy array by column with the following code. I highly recommend you the “Python Crash Course Book” to learn Python. In this article, you’ll see two examples with solutions. Example 1: Sort NumPy array by column in Ascending order Output: Sorted array by 3rd Column [[10 5 3 2 5] [ 5 10 …

## What are the advantages of NumPy over Python list

In this article, you’ll see the advantages of NumPy over the Python list. I highly recommend you the “Python Crash Course Book” to learn Python. NumPy arrays are faster than Python lists. This feature is very helpful for large data. NumPy arrays consume less memory than lists. When we deal with a very large dataset then we …

## How to find index of element in NumPy array

You can find the index of an element in the NumPy array with the following code. I highly recommend you the “Python Crash Course Book” to learn Python. In this article, you’ll see the four examples with solutions. These examples are: Find the index of an element in a 1D NumPy array Index of the element in …

## How to remove duplicates from NumPy array

You can remove duplicates from the NumPy array with the following code. If you want to learn Python, I highly recommend reading This Book. Remove duplicates from the NumPy array Output: [ 1 2 3 4 10] Free Learning Resources

## How to remove nan values from NumPy array

You can remove nan values from the NumPy array with the following methods. If you want to learn Python, I highly recommend reading This Book. Method 1 Output: [7. 8. 0. 5.] Method 2 Output: [7. 8. 0. 5.] Example: Remove nan values from the Higher Dimensional Array When you remove the nan values from the higher …

## How to remove last element from NumPy array

You can remove the last element from the NumPy array with the following methods. If you want to learn Python, I highly recommend reading This Book. Method 1: Remove last element from NumPy array using slicing Output: [ 5 10 15 20 25 30 35 40 45] Method 2: Remove last element from NumPy array using np.arange() …

## How to remove an element from a NumPy array in Python

You can remove an element from a NumPy array in Python with the following code. If you want to learn Python, I highly recommend reading This Book. Example 1: Remove Single Element from NumPy array Output: [ 5 10 20 25 30] Example 2: Remove multiple elements from NumPy array Output: [ 5 10 20 30 35 …

## How to remove zeros from NumPy array

You can remove zeros from the NumPy array with the following code. If you want to learn Python, I highly recommend reading This Book. Remove zeros from NumPy array Output: [10 20 25 35 45 50] Free Learning Resources

## How to count number of zeros in NumPy array

You can count the number of zeros in the NumPy array with any of the following methods. If you want to learn Python, I highly recommend reading This Book. Method 1: Output: 4 Method 2 Output: 4 Method 3 Output: 4 How to count the number of zeros in each row? Output: [2 2 1 3] How …

## How to create an array with the same value in Python

You can create an array with the same value in Python with any of the following methods. If you want to learn Python, I highly recommend reading This Book. Method 1: Using np.repeat() Output: [2 2 2 2 2] Method 2: Using np.full() Output: [[2 2 2 2 2 2] [2 2 2 2 2 2] [2 …