peaks2 - find peaks in 2D data without additional toolbox (https://www.mathworks.com/matlabcentral/fileexchange/113225-peaks2-find-peaks-in-2d-data-without-additional-toolbox), MATLAB Central File Exchange. Retrieved May 14, 2025. Requires MATLAB MATLAB Release Compatibility Created...
I am trying to use the "findpeaks" function to find the peak in a set of data. I want to better understand how the function works. Please explain what is the purpose of the number "7000" in the line below? It finds several peaks when this number is low....
Between the peaks is lots of noise. To avoid the noise, I need to know the nearest zeros to each peak (one on each side of the peak), and the index at which those points happen. Realistically, while the data fluctuates about zero, there are no points that are preci...
This MATLAB function returns a vector with the local maxima (peaks) of the input signal vector, y.
data = peaks; data = data + randn(49)*0.3; A = clip(data,-Inf,5); contour(A) colorbar Find the local maxima and plot them on the surface plot. By default, islocalmax2 finds all local maxima whose prominence is greater than 0. Get [TF P] = islocalmax2(A); To understand ...
I'm assuming that xn in your loop above is the signal. You don't show us where xn comes from and it's not used in your call to findpeaks(). In your call to findpeaks, you use x. So If that is the case, then you don't need a loop.
This MATLAB function returns a structure, L, defining the main, back, and side lobes of the antenna or array radiation pattern in the specified polar plot, p.
I have this signal which is noisy as well as it has too much data samples. When I try to find the peaks or valleys, it gives multiple peaks/valleys around the same point probably because the data is noisy and has too many samples. I did use the 'MinPeakDistance' and also tried ...
figure tab1 = uitab('Title','Tab1'); ax1 = axes(tab1); plot(ax1,1:10) tab2 = uitab('Title','Tab2'); ax2 = axes(tab2); surf(ax2,peaks) Return all objects in the current figure and its descendants. Get h = findobj(gcf) h = 8×1 graphics array: Figure (1) TabGroup...
figure tab1 = uitab('Title','Tab1'); ax1 = axes(tab1); plot(ax1,1:10) tab2 = uitab('Title','Tab2'); ax2 = axes(tab2); surf(ax2,peaks) Return all objects in the current figure and its descendants. h = findobj(gcf) ...