% from a curve

3 次查看（过去 30 天）
lucas
lucas 2013-12-6
评论： lucas 2013-12-7
hello
i got one curve plotted that i maded using pwelch and i want to get one specific value (at 95% of the curve)
how do i get that?
thx
  1 个评论
Wayne King
Wayne King 2013-12-6
pwelch produces an estimate of the power spectral density, so what do you mean by 95%. I think you need to clarify 95% of what?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2013-12-6
% Define the value we're looking for in our data, callled "theCurve".
threshold = 0.95 * max(theCurve); % or whatever you want.
% Find where this happens the first time.
theIndex = find(yourCurve > threshold, 1, 'first');

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Numerical Integration and Differentiation 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