Cohort analysis is a method used to analyze and compare the behavior, characteristics, or performance of different groups, or cohorts, over time. These cohorts are typically defined by a shared characteristic, attribute, or time-based event. The analysis helps identify trends, patterns, and insights related to how specific groups evolve and respond to certain factors. Cohort analysis is particularly valuable in fields such as marketing, customer analytics, user engagement analysis, and subscription-based business models. It helps organizations understand how different segments of their audience evolve and interact with their products or services over time, enabling them to make informed decisions and improvements.