Stat cards and sparklines

StatCard shows one metric: a value summarized from your rows, a delta, and a small chart. chart chooses an area (the default) or line sparkline, bars, a meter of cells or a ring filling toward target, or none. aggregate decides how the resting value sums up the data: sum, mean, max or last.

Hover, touch and the keyboard inspect the sparkline, and the headline follows the inspected point. Null stays a visible gap. See Stat cards for every prop.