Datum Plot 0.3.7

Ternary, waterfall, radar and bubble graphs.

New graph styles (Graph › Graph Style, or Format Graph › Graph)

• Waterfall (XY tables): each data set's curve is lifted above the last and labelled at its end, for spectra, runs or temperatures. The lift is automatic, or set it in Format Graph.
• Ternary (tables of many variables): the first three variables of each row as shares of 100 % on a triangle, for compositions.
• Bubble (tables of many variables): X, Y, bubble size from the third variable, and colour from a fourth if there is one, with a size key and a colour bar.
• Radar (grouped tables): the rows are the spokes and each data set is an outline through its means, for comparing profiles.
• A graph style a table cannot make says why (a radar needs at least three rows, a ternary three variables).

New sample

• Composition triangle: copper, nickel and zinc in 18 alloys on a ternary graph; switch to Bubble to see hardness as bubble size.