spineScoreMap

The colormap used for SPINE scores.
Pale at score 0 and deep at score 1, monotone in lightness, built from Okabe-Ito anchors so it stays readable in greyscale and to colour-blind readers. The typical bulk recedes and the atypical objects stand out.
spineDataPlot and spineNetworkPlot apply it for you. Use this directly only when drawing your own figure.

Syntax

help spineScoreMap
SPINE Score Map Sequential colormap for SPINE scores. cmap = spineScoreMap 256 colours cmap = spineScoreMap(n) n colours Pale at score 0 and deep at score 1, monotone in lightness, built from Okabe-Ito anchors so that it stays readable in greyscale and to colour-blind readers. The typical bulk recedes and the atypical objects stand out. Uses base MATLAB only. Author Abd AlRahman AlMomani Assistant Professor of Data Science and Mathematics, ERAU, AZ almomaniar@gmail.com

Using it on your own axes

Fix the colour limits at 0 to 1, as the package's own figures do, so two pictures can be compared by eye.
rng(4242);
D = [randn(200,2); [12 12] + 0.25*randn(20,2)];
[s, ~] = spine(D, 'dist2median', "upper");
 
figure('Color','w');
scatter(D(:,1), D(:,2), 30 + 60*s, s, 'filled', 'MarkerEdgeColor', [0.3 0.3 0.3]);
colormap(spineScoreMap); clim([0 1]); colorbar; axis equal
title('drawn by hand, coloured by score');

The ramp itself

c = spineScoreMap(9);
disp(round(c, 3))
0.9730 0.9690 0.8820 0.9580 0.9460 0.5160 0.9410 0.8940 0.2590 0.9230 0.7770 0.0840 0.9020 0.6240 0 0.8770 0.4930 0 0.8350 0.3690 0 0.6640 0.2550 0.0100 0.3490 0.1490 0.0310

Monotone in lightness

Pale at zero and deep at one, so the ordering survives a greyscale print.
lum = spineScoreMap * [0.2126; 0.7152; 0.0722];
fprintf('luminance at score 0: %.3f, at score 1: %.3f\n', lum(1), lum(end));
luminance at score 0: 0.964, at score 1: 0.183

See also

spineDataPlot, spineNetworkPlot.
close all