User Guide# Meerkat Basics# Introduction to Data Structures Column DataPanel Data Selection Selecting Columns Selecting Rows Lambda Columns and Lazy Selection Lambda Columns Lazy Selection Overview of Column Types I/O Writing to Disk Reading from Disk Importing into Meerkat Exporting from Meerkat Map, Filter, and Update Map Filter Update Operations Merge Concat GroupBy Visualization Patterns and Anti-patterns Common Use Cases# Creating Machine Learning Datasets with Meerkat Training Models with Meerkat Evaluating Models with Meerkat Performing Error Analysis with Meerkat Advanced Topics# Copy vs. View Behavior Copies, Views, and Coreferences Behavior when Indexing Subclassing DataPanel and AbstractColumn Subclassing AbstractColumn Subclassing DataPanel