A Bubble Chart plots data points with three dimensions: two axis values plus a bubble size that encodes a third variable. This makes bubble charts ideal for comparing multiple parameters at once.
This multi-series bubble chart visualizes training statistics for four sportsmen on a scatter plot. Average pulse is mapped to the x-axis and average power to the y-axis, while each bubble size represents training duration. Custom HTML tooltips display the date, power, pulse, and duration for every session, and the interactive legend lets you highlight or toggle individual series.
See the Bubble Chart documentation for all configuration options.