Dive into the world of PySpark, the powerful Python API for Apache Spark, designed for big data processing and analytics! Our comprehensive hands-on tutorials equip you with the skills to handle large-scale data and perform distributed computing with ease. Learn how to leverage PySpark's rich ecosystem to build data pipelines, execute complex transformations, and perform machine learning on big datasets. Our step-by-step guides will help you master PySpark. Dive in and start learning PySpark.
Introduction In data processing and analysis with PySpark, it's often important to know the structure of your data, such as the number of rows and columns in a DataFrame. This is crucial for various operations, including data validation, transformations, and general exploration. In this tutorial, we'll...
Introduction In this tutorial, we want to count the distinct values of a PySpark DataFrame column. In order to do this, we use the distinct().count() method and the countDistinct() function of PySpark. Import Libraries First, we import the following python modules: from pyspark.sql import SparkSession from pyspark.sql....
Introduction In distributed computing environments like Apache Spark, efficient data handling is critical for performance. One useful feature for optimizing computations is broadcast variables. Broadcast variables allow you to share large read-only data across all nodes in a Spark cluster without duplicating the data for each task. In this tutorial,...
Introduction In this tutorial, we will explore how to read a Delta table into a PySpark DataFrame. Goal A Delta table stored in a lakehouse should be read into a PySpark DataFrame. Prequestisies ☑️ Notebook created We have already created the notebook "dlnerds_notebook". If you want to know...
Introduction In this tutorial, we will walk through the steps required to write a PySpark DataFrame to a Delta table in Microsoft Fabric. We'll start by creating an example DataFrame, then demonstrate how to write it to a Delta table. Goal An example PySpark DataFrame should be created...
Introduction In this tutorial, we will show you how to get a randomly sampled subset of a PySpark DataFrame. In order to do this, we will use the sample() function of PySpark. What is the sample() Function? The sample() function in PySpark is used to create a new DataFrame by...
Introduction In today's data-driven world, understanding text data is crucial across various domains, from data analysis to engineering and architecture. However, dealing with text data often requires converting it into numerical representations for machine learning models to process efficiently. This is where embedding vectors come into play, offering...
Introduction In this tutorial, we will show you how to concatenate multiple string columns of a PySpark DataFrame into a single column. In order to do this, we will use the functions concat() and concat_ws() of PySpark. Import Libraries First, we import the following python modules: from pyspark.sql...
Introduction In this tutorial, we will show you how to remove the leading and trailing whitespaces from a string column of a PySpark DataFrame. In order to do this, we will use the functions trim(), ltrim() and rtrim() of PySpark. Import Libraries First, we import the following python modules: from...