Last threshold's "more than x" label should be "x or more"

[robatwilliams]

Threshold scale domain values indicate the lower bound of every slice except the first. They are inclusive:

var color = d3.scaleThreshold()
    .domain([      0,       1])
    .range(["red", "white", "green"]);

color(-1);   // "red"
color(-0.5); // "red"
color(0);    // "white"
color(0.5);  // "white"
color(1);    // "green"

Given the above scale and .labels(d3.legendHelpers.thresholdLabels), d3-scale will produce the following legend:

RED   Less than 0.0
WHITE 0.0 to 1.0
GREEN More than 1.0

... where the last label being "more than" incorrectly suggests that 1.0 would not be green. In other words, the slice is inclusive but its label is exclusive.

It should say "1.0 or more".

"Less than" at the other end of the scale is correct, because 0 is the upper bound of that slice and is therefore exclusive.

[susielu]

Ah that makes sense. I fixed the text in the latest version 2.25.5 it now looks something like this

[robatwilliams]

Great to see this fixed in c1bcef8, thanks.

The documentation still needs to be updated though.