topic Re: How are the level settings of a ternary contour plot determined? in Discussions

How are the level settings of a ternary contour plot determined?

frankderuyck — Wed, 25 Jun 2025 08:32:00 GMT

Find below a ternary contour plot with legend settings: how are the levels in legend settings determined? In the orange (maximum) Yield window I would like to see more levels; is it possible to increase the contour plot levels?

Re: How are the level settings of a ternary contour plot determined?

Ben_BarrIngh — Wed, 25 Jun 2025 12:26:45 GMT

Hi @frankderuyck ,

The contour plot levels are always split into 5 segments, this can't currently be changed (see here).

It might be worth putting in a Wish List request for it.

Thanks,

Ben

Re: How are the level settings of a ternary contour plot determined?

frankderuyck — Wed, 25 Jun 2025 12:52:22 GMT

Ben,thanks for input, guess I have to use the mixture profiler but there you get only the contour lines, no colors, correct?

Some segments are wide: are these segment levels averages? What are the limits of each setting?

Re: How are the level settings of a ternary contour plot determined?

Victor_G — Fri, 05 Sep 2025 13:18:53 GMT

By default, levels in the Ternary plots are defined to be equidistant between min and max values of the predicted values.
So in your example, your predicted response values fo from 34 to 120, so the average is around 77 (3rd level displayed). For the 2nd and 4th levels, it's the middle of the corresponding remaining range :

2nd level : from 34 to 77, range = 43, so 2nd level is the middle of this range, around 55,5.
4th level : from 77 to 120, range = 43, so 4th level is the middle of this range, around 98,5.

Hope this complementary response will explain a little more how the 5 levels are distributed on this plot,