# where are my data?

2 views (last 30 days)
Paul Rogers on 14 Jan 2020
Commented: Star Strider on 14 Jan 2020
I plot a figure by using a function from a package.
Now I'd like to know the x and y values once I plot the curve.
Where are they stored

Star Strider on 14 Jan 2020
Try this:
F = openfig('untitled.fig');
ax = gca;
lines = findobj(ax, 'Type','Line');
for k = 1:numel(lines)
x{k,:} = lines(k).XData;
y{k,:} = lines(k).YData;
end
The x- and y-data for each line are in their appropriate cell arrays.

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Star Strider on 14 Jan 2020
I am not certain what you intend withh ‘...plot but with a different x
Two possibilities:
F = openfig('Puntitled.fig');
ax = gca;
lines = findobj(ax, 'Type','Line');
for k = 1:numel(lines)
x{k,:} = lines(k).XData;
y{k,:} = lines(k).YData;
end
newx = -0.2:0.01:0.8;
for k = 1:numel(lines)
newy{k,:} = interp1(x{k}, y{k}, newx, 'linear','extrap'); % Interpolate-Extrapolate
end
or:
figure
plot(newx, cell2mat(newy)) % Plot Interpolated Values
grid
figure
plot(cell2mat(x).', cell2mat(y).') % Plot Previous Data With New X-Axis Ticks
xt = get(gca, 'XTick');
set(gca, 'Xtick',xt, 'XTickLabel',newx)
grid
One of these should do what you want.
Paul Rogers on 14 Jan 2020
for k = 1:numel(lines)
figure(4)
plot(FlowVector,y{k,:})
grid on
hold on
end
here's is the solution.
Man, thank you a lot, you really helped me.
I couldn't figured out without your help.
Star Strider on 14 Jan 2020
As always, my pleasure!
That’s what I’m here for!

R2014b

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