how to show difference between two plotted data in graph ?

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Hi all:
i plotted two series of data in graph now i want to differentiate between two graphs so i want to know difference of these two graphs in ploting by numerical data .
i mean what difference come between these two graphs it will show me numerically in graph .
d=[120 234 499 324 567 343 550 405 600 700]
m=[123 456 789 456 765 867 989 675 867 433]
figure
plot(d)
hold on
plot(m)
xlabel('solar radition ')
ylabel('haat gain')
legend('heat gain')
title('uuseful heat gain')
thanks in advance

Respuesta aceptada

Mario Malic
Mario Malic el 22 de Oct. de 2020
Do you mean difference by this?
c = m-d
plot(c)
  6 comentarios
Mario Malic
Mario Malic el 22 de Oct. de 2020
I do not know how to check documentation for 2017a, so, please check your text function, if 'HorizontalAlignment', 'center' is a valid option and check if string(c) outputs 1x10 string array.
Image Analyst
Image Analyst el 22 de Oct. de 2020
Try this:
d = [120 234 499 324 567 343 550 405 600 700]
m = [123 456 789 456 765 867 989 675 867 1000]
plot(d, '-', 'LineWidth', 2)
hold on
plot(m, '-', 'LineWidth', 2)
grid on;
differences = m - d;
xCenter = 1:1:length(m);
yCenter = (m+d)/2;
for k = 1 : length(xCenter)
textLabel = sprintf('%.1f', differences(k));
text(xCenter(k), yCenter(k), textLabel, 'HorizontalAlignment', 'center')
end
xlabel('Solar Radiation ')
ylabel('Heat gain')
legend('d', 'm', 'Location', 'south')
title('Useful Heat Gain')
Note that the differences are vertical. It doesn't make any sense to have a slanted difference line (between two different time points) like you had.

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