Tag: has
Get DataFrame Rows whose column has a certain value
Several times, we need to extract out the rows where the columns match certain values. In this article, we will discuss different ways to achieve that. Table of Contents Introduction Get rows whose column matches a value Using loc[] Get rows whose column matches a value Using where() method from Numpy Get rows whose column …
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Pandas – Select Rows where each column has equal values
This tutorial will discuss about different ways to select DataFrame rows where each column has equal values. Table Of Contents Preparing DataSet Select DataFrame Rows with equal values in all columns Summary Preparing DataSet Let’s create a DataFrame with some hardcoded data. Advertisements import pandas as pd data = {‘Col_A’: [21, 12, 33, 14, 35, …
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Check if a NumPy Array has duplicates in Python
This tutorial will discuss about unique ways to check if a numpy array has duplicates in Python. Table Of Contents Method 1: Using numpy.unique() Method 1: Using Set Summary Method 1: Using numpy.unique() The numpy module provides a function unique(). It accepts a NumPy array as an argument, and returns a new array containing the …