Indexing at the end of flat peaks

I have been using findpeaks to index my data, however, it is indexing the value at the start of each of the flat peaks. Instead, I want it to index the value at the end of the flat peaks so that I can cut up the data like I have done in my current code below:

[pksr, idcsr] = findpeaks(r_grf, 'MinPeakHeight',-100, 'MinPeakDist',100);

for k1 = 1:numel(idcsr)-1

grfcutr{k1} = r_grf(idcsr(k1)-10:idcsr(k1+1)-10);

end

I have looked at the documentation on flat peaks but it isn't helping in my case.

Image of my uncut data:

Thanks

[Image Analyst]

Is the value at the flat section always exactly 0, or (if not) do you want to consider values within a specified distance of 0 to be part of the "flat" section? Do you have the Image Processing Toolbox - if so, this has functions which would make it almost trivial. Please attach your data - make it easy for us to help you, not hard (by making us create data somehow).

save('answers.mat', 'r_grf');

Then attach 'answers.mat'.

[Luke Cohen]

Hi Image Analyst,

I am trying to do something similar to this... can you mention the function in the Image Processing Toolbox that would be useful?