How to save indexes from a MATLAB figure in a matrix manually?

Hello everyone,

I have an ECG signal that I should find its R-peaks by an R-peak detection algorithm.

At the first, I want to acquire the peaks' indexes by clicking on the point and then saving all the indexes in a matrix. Is it possible to guide me on how to select the points manually and save their indexes?

After creating the matrix, I want to compare the algorithm results to the manual results.

Answer 1

[Mario Malic]

Hello,

Here's an extensive answer by Adam that should cover everything you might need with the datatips (if you are able to create those on your figure). Otherwise see the CurrentPoint property. Sorry, I can't provide an example for this.

[Malahat Mehraban]

Thank you for your help, it was really helpful and informative.