How to find the horizontal distance between change point lines?

Question

Carlos 2023-7-18

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1997513-how-to-find-the-horizontal-distance-between-change-point-lines

评论： Carlos 2023-7-18

I am trying to use MATLAB to automatically calculate a distance within a graph for a project. I decided to use the find change points function and got vertical lines displaying the points I desired. What I am now wondering is if there is a way to find the horizontal distance between the lines. My code is attached and a picture of what I am trying to find.

rawTable = readtable('Data.xlsx')
x_long = rawTable.x
AVPD_s = rawTable.y
figure;
plot(x_long, AVPD_s)
% Find change points
changeIndices = ischange(AVPD_s,"linear","SamplePoints",x_long);
% Display results
figure
plot(x_long,AVPD_s,"Color",[77 190 238]/255,"DisplayName","Input data")
hold on
% Plot change points
x = repelem(x_long(changeIndices),3);
y = repmat([ylim(gca) missing]',nnz(changeIndices),1);
plot(x,y,"Color",[51 160 44]/255,"LineWidth",1,"DisplayName","Change points")
title("Number of change points: " + nnz(changeIndices))
hold off
legend
xlabel("x_long","Interpreter","none")
clear x y