I want to find indexes for maximum and minimum

1 次查看（过去 30 天）

显示更早的评论

Young Lee 2018-10-20

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/425067-i-want-to-find-indexes-for-maximum-and-minimum

评论： madhan ravi 2018-10-21

采纳的回答： madhan ravi

Maxima valuesYNX.fig

在 MATLAB Online 中打开

I am new to matlab and having difficulty. I want to find indexes for maximum and minimum and put them into sets of array. Here is what I have tried. I have no clue on how to produce data for minimum X and Y indexes. Much appreciated for help!

Ry = HeelArray(:,3);
Ry2= HeelArray(:,6);
plot (Ry)
hold on
plot (Ry2)
findpeaks(Ry2, 'Minpeakheight',500);
[Minima, MinIdx] = findpeaks(Ry2, 'Minpeakheight',500);

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Image Analyst 2018-10-20

Can you attach HeelArray in a .mat file with the paper clip icon, and attach a PNG screenshot with the green and brown frame icon.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

madhan ravi 2018-10-20

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/425067-i-want-to-find-indexes-for-maximum-and-minimum#answer_342387

编辑：madhan ravi 2018-10-20

 findpeaks(-Ry2); %see carefully I added minus sign in front of Ry2

4 个评论
显示 2更早的评论隐藏 2更早的评论

Young Lee 2018-10-21

Thanks that worked it out

madhan ravi 2018-10-21

you’re welcome :)

请先登录，再进行评论。

类别

Signal Processing Signal Processing Toolbox Measurements and Feature Extraction Descriptive Statistics

在 Help Center 和 File Exchange 中查找有关 Descriptive Statistics 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by