This is the output image of what I'm getting.

You can see the points are not following the curve.

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The problem is similar to this but I have an x-axis that decreases from 1 to 0 at increments of 0.1 https://www.mathworks.com/matlabcentral/answers/89104-how-to-display-the-coordinate-of-the-point-in-the-figure

for k=1:numel(x)

text(x(k),y(k),['(' num2str(x(k)) ',' num2str(y(k)) ')'])

end

I also need to adjust the window for this but axis won't work because it only applies for increases x-values.

Can someone advise me how to accommodate for these changes?

Walter Roberson
on 24 Jan 2016

Walter Roberson
on 25 Jan 2016

clf

f = [ 0.99 , 0.77, 0.55, 0.33 ];

y1 = @(f)(-14.2 +1000.0) * f.^(1.02 - 1.0) - 1000.0;

y2 = @(newvariable) (1.02 * (newvariable +1000.0) - 1000.0);

y1f = y1(f);

y2y1f = y2(y1f);

y1_0 = fzero(y1,[0,realmax]);

y2y1_0 = fzero(@(x) y2(y1(x)),[0,realmax]);

h = plot( f , y1f, '--ob', f, y2y1f, '--ok', y1_0, 0, '*r', y2y1_0, 0, '*g' );

set(gca, 'xdir', 'reverse')

XY = [f(:), y1f(:); f(:), y2y1f(:); y1_0, 0; y2y1_0, 0];

labels = cellstr([num2str(XY(:,1)),repmat(', ',size(XY,1),1),num2str(XY(:,2))]);

text(XY(:,1), XY(:,2), labels);

legend(h, {'y1(x)', 'y2(y1(x))', 'y1(x) = 0', 'y2(y1(x)) = 0'}, 'location', 'southwest');

Afshin Aghayan
on 8 Oct 2019

you can use this code for displaying any data in the form of [x, y, f(x,y)] or data with coordinate

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