Weโre excited to announce the Count Distinct metric type for Statsig Cloud. Count Distinct lets you measure unique entitiesโlike transactions, devices, or pages viewsโby counting unique values across the experiment window.
The Count Distinct metric is a sketch based metric that relies on probabilistic HyperLogLog++ (HLL++). We chose this approximation method to optimize for efficiency and speed. Visit our docs page to learn more about our implementation.
Itโs available starting today.