Make a 2D plot with one arbitrary axis

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I’d like to make a 2D plot like the attached file in MATLAB. My problems are: 1. As the vertical axis is arbitrary, how can I plot a 1D- vector in MATLAB with x, y? I mean we have just data for x-axis (VEC) and how we can plot this vector in a 2D plot while the y-axis is arbitrary? VEC=[2 6 4.5 5 3 6.2 8 2.4]; 2. How can I add those dashed vertical line in a 2D plot? 3. How can fill the inside of the plot with colors? I mean left hand side of the dashed vertical line with a yellow (for example)? Is that possible to make different filling color for each section between the vertical dashed lines? (just like the attached file)
Best, Majid

Risposta accettata

Ive J
Ive J il 22 Gen 2022
Modificato: Ive J il 22 Gen 2022
You can start with something like this
bpoints = [6.88, 7.84];
color = summer(numel(bpoints) + 1); % or whatever colors you like
v = [5 6.2 8, 9];
h = plot(v, v, 'LineStyle', 'none');
h.Parent.Box = 'on';
ylim = h.Parent.YLim;
xlim = h.Parent.XLim;
h.Parent.YTickLabel = [];
bpoints(end + 1) = xlim(2);
offset = xlim(1);
for i = 1:numel(bpoints)
xx = [offset, bpoints(i), bpoints(i), offset];
yy = [ylim(1), ylim(1), ylim(2), ylim(2)];
patch(h.Parent, 'XData', xx, 'YData', yy, 'FaceColor', color(i, :), ...
'EdgeColor', 'none', 'FaceAlpha', 0.5)
offset = bpoints(i);
if i < numel(bpoints)
xline(h.Parent, bpoints(i), '--', 'LineWidth', 1.4)
end
end
xlabel('VEC')
h.Parent.FontSize = 12;
h.Parent.FontWeight = 'bold';
And then you can add text objects wherever you need (for dots/squares you can also use scatter or plot)
doc text
  4 Commenti
Ive J
Ive J il 22 Gen 2022
Modificato: Ive J il 22 Gen 2022
Not sure about it. What happens if you try without axes handle?
patch('XData', xx, 'YData', yy, 'FaceColor', color(i, :), ...
'EdgeColor', 'none', 'FaceAlpha', 0.5)
Or even only with xx and yy?
patch('XData', xx, 'YData', yy)
Majid Vaghari
Majid Vaghari il 24 Gen 2022
It does not work by each of the option. BTW there is no xline in MATLAB R2014B.
Thanks anyway, maybe I would change my MATLAB VERSION.
BEST
MAJID

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Ahmed raafat
Ahmed raafat il 22 Gen 2022
Modificato: Ahmed raafat il 22 Gen 2022
fill command will be suitable define your 3 squares as vectors , for y make it equal 1 for your graph I think
x1=[6.4 6.88 6.88 6.4 6.4];
y=[0 0 1 1 0];
x2=[6.88 7.84 7.84 6.88 6.88];
x3=[7.84 9 9 7.84 7.84];
d1=[6.88 6.88];
d2=[7.84 7.84];
figure(1)
fill(x1,y,'g')
hold on
fill(x2,y,'r')
fill(x3,y,'g')
plot(d1,[0,1],'b:')
plot(d2,[0,1],'b:')

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