Bubble

Compare two dimensions and a third value through size.

Use bubbles when position and magnitude answer distinct questions. Keep overlap under control and make exact values available in the tooltip and table.

Each bubble has a stable identity and projected position/size. The calculation Core owns domains and magnitude scaling; the native renderer does not recalculate them during touch.

Use meaningful axis titles, restrained colours and optional grid lines. Wider plots can scroll instead of squeezing positions and labels.