Intro to triangle charts (and their use cases)

Triangle charts, also known as retention tables, are a powerful visualization tool used to analyze user behavior and retention over time, providing valuable insights into user engagement strategies. These charts, characterized by their triangular shape, are divided into a retention graph and a retention table, where the graph shows retention trends over time, and the table tracks user cohorts from their initial interaction, displaying the percentage of returning users at various intervals. Triangle charts allow for vertical and horizontal analysis to compare retention rates across different cohorts and track how a single cohort's retention evolves over time. They are particularly useful for product managers, marketers, and data analysts in assessing the impact of product features, updates, or strategies on user retention, comparing different user groups, identifying engagement patterns, guiding product development, and demonstrating retention metrics to investors. Statsig's implementation of triangle charts facilitates these analyses by structuring data to enable both cohort comparisons and longitudinal retention tracking, with comprehensive documentation available for deeper exploration and expert support when needed.