Extracting, transforming and selecting features This section covers algorithms for working with features, roughly divided into these groups: Extraction: Extracting features from “raw” data Transformation: Scaling, converting, or modifying features Selection: Selecting a subset from a larger set of features Locality Sensitive Hashing (LSH): This class of algorithms combines aspects of feature trans

Spark SQL, DataFrames and Datasets Guide Overview SQL Datasets and DataFrames Getting Started Starting Point: SparkSession Creating DataFrames Untyped Dataset Operations (aka DataFrame Operations) Running SQL Queries Programmatically Global Temporary View Creating Datasets Interoperating with RDDs Inferring the Schema Using Reflection Programmatically Specifying the Schema Data Sources Generic Loa

Spark SQL, DataFrames and Datasets Guide Spark SQL is a Spark module for structured data processing. Unlike the basic Spark RDD API, the interfaces provided by Spark SQL provide Spark with more information about the structure of both the data and the computation being performed. Internally, Spark SQL uses this extra information to perform extra optimizations. There are several ways to interact wit

Apache Spark™ examples This page shows you how to use different Apache Spark APIs with simple examples. Spark is a great engine for small and large datasets. It can be used with single-node/localhost environments, or distributed clusters. Spark’s expansive API, excellent performance, and flexibility make it a good option for many analyses. This guide shows examples with the following Spark APIs: D