comparing many plots with their peak values

Question

YH 2020-1-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/502788-comparing-many-plots-with-their-peak-values

评论： YH 2020-1-30

采纳的回答： Mohammad Sami

test.mat

在 MATLAB Online 中打开

Hey,

I have three hydrographs with different lenghts

I want to compare these hydrographs and the best way to do so is to overlay the peaks on top of each other or in other words to centralized the peak points in the x axes ( make all the peaks having the same position, lets say 0 in the x axes.

plot(biggest_hg1)
hold on 
plot(biggest_hg2)
plot(biggest_hg3)

I have attached the hydroraphs as mat file.

Does some one have any idea how to do it?

Thanks alot in advanced!

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Answer 1

Mohammad Sami 2020-1-30

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/502788-comparing-many-plots-with-their-peak-values#answer_412851

在 MATLAB Online 中打开

load('test.mat');
[~,i1] = max(biggest_hg1);
x1 = (1:length(biggest_hg1)) - i1;
[~,i2] = max(biggest_hg2);
x2 = (1:length(biggest_hg2)) - i2;
[~,i3] = max(biggest_hg3);
x3 = (1:length(biggest_hg3)) - i3;
plot(x1,biggest_hg1);
hold on;
plot(x2,biggest_hg2);
plot(x3,biggest_hg3);