Locating global max in 3D plot

5 次查看（过去 30 天）
John Paul
John Paul 2021-1-22
评论： Star Strider 2021-1-23
I'm working on some MATLAB code but I have encountered a problem that has hindered my progress.
Kindly would you assist me on how I may locate a global maxima value in a case where I have more than one maximas in a 3D plot.
I'm using this
Idx = find((Pmusic(:) == max(max(Pmusic(:)))));
[PmusicmaxRow,PmusicmaxCol] = ind2sub(size(Pmusic), Idx);
but it brings all the maximas but I am only interested with the indices of the global maxima.

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2021-1-22
Try this:
[maxval,Idx] = max(Pmusic(:));
[PmusicmaxRow,PmusicmaxCol] = ind2sub(size(Pmusic), Idx);
I obviously cannot test this with your matrix, however it worked correctrly when I tested it with my test matrix.
  4 个评论
显示 2更早的评论
John Paul
John Paul 2021-1-23
Respected Sir, You are absolutely correct. This section of the code is supposed to genereate indices for the global maximas for 10 iterations and that is the reason ‘aaa’ and ‘ccc’ are (1x10) vectors. Thank you so much for your invalauble advice. You have made me move a step further with my work.
Star Strider
Star Strider 2021-1-23
As always, my pleasure!
I am always happy to help!

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Direction of Arrival Estimation 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by