Category: Numpy
Create Numpy Array of different shapes & initialize with identical values using numpy.full() in Python
In this article we will discuss how to create a Numpy Array of different shapes and initialized with same identical values using numpy.full(). numpy.full() Python’s Numpy module provides a function to create a numpy array of given shape and all elements initialized with a given value, Advertisements numpy.full(shape, fill_value, dtype=None, order=’C’) Arguments:shape: Shape of the …
numpy.linspace() | Create same sized samples over an interval in Python
In this article we will discuss how to create a Numpy array of evenly spaced samples over a range using numpy.linspace(). Numpy.linspace() Python’s Numpy module provides a function to create a evenly spaced samples over a specified interval i.e. Advertisements numpy.linspace(start, stop, num=50, endpoint=True, retstep=False, dtype=None) Arguments:start : It’s the start of Sequence / range.stop …
numpy.linspace() | Create same sized samples over an interval in PythonRead More
np.delete(): Remove items/rows/columns from Numpy Array
In this article, we will discuss how to remove elements from a 1D or 2D Numpy Array by index position using numpy.delete(). Then we will also see how to remove rows and columns from 2D numpy array. Delete elements / rows / columns from Numpy Array using np.delete() Table of Contents np.delete() – Overview Delete …
np.delete(): Remove items/rows/columns from Numpy ArrayRead More
How to get Numpy Array Dimensions using numpy.ndarray.shape & numpy.ndarray.size() in Python
In this article we will discuss how to count number of elements in a 1D, 2D & 3D Numpy array, also how to count number of rows & columns of a 2D numpy array and number of elements per axis in 3D numpy array. Get the Dimensions of a Numpy array using ndarray.shape() numpy.ndarray.shape Python’s …
Delete elements from a Numpy Array by value or conditions in Python
In this article we will discuss different ways to delete elements from a Numpy Array by matching value or based on multiple conditions. Remove all occurrences of an element with given value from numpy array Suppose we have a numpy array of numbers i.e. Advertisements # Create a numpy array from a list arr = …
Delete elements from a Numpy Array by value or conditions in PythonRead More
How to save Numpy Array to a CSV File using numpy.savetxt() in Python
In this article we will discuss how to save 1D & 2D Numpy arrays in a CSV file with or without header and footer. numpy.savetxt() Python’s Numpy module provides a function to save numpy array to a txt file with custom delimiters and other custom options i.e. Advertisements numpy.savetxt(fname, arr, fmt=’%.18e’, delimiter=’ ‘, newline=’n’, header=”, …
How to save Numpy Array to a CSV File using numpy.savetxt() in PythonRead More
How to Reverse a 1D & 2D numpy array using np.flip() and [] operator in Python
In this article we will discuss different ways to reverse the contents of 1D and 2D numpy array ( columns & rows ) using np.flip() and [] operator. Reverse 1D Numpy array using [] operator trick First of all import numpy module i.e. Advertisements import numpy as np Now suppose we have a numpy array …
How to Reverse a 1D & 2D numpy array using np.flip() and [] operator in PythonRead More
Sorting 2D Numpy Array by column or row in Python
In this article we will discuss how to sort a 2D Numpy array by single or multiple rows or columns. Sorting 2D Numpy Array by a column First of all import numpy module i.e. Advertisements import numpy as np Now suppose we have a 2D Numpy array i.e. # Create a 2D Numpy array list …
What is a Structured Numpy Array and how to create and sort it in Python?
In this article we will discuss what is a structured numpy array and how to create it and sort it using different functions. What is a Structured Numpy Array ? A Structured Numpy Array is an array of structures (Similar to C struct). As numpy arrays are homogeneous i.e. they can contain data of same …
What is a Structured Numpy Array and how to create and sort it in Python?Read More
How to sort a Numpy Array in Python ?
In this article we will discuss different ways to sort a numpy array in python. Python’s Numpy module provides 2 different methods to sort a numpy array. numpy.ndarray.sort() A member function of ndarray class, Advertisements ndarray.sort(axis=-1, kind=’quicksort’, order=None) It can be called through a numpy array object (ndarray) and it sorts the associated numpy array …