Selection of a signal area to detect fixed point

Question

Eleni Kamara 2021-6-5

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https://ww2.mathworks.cn/matlabcentral/answers/848480-selection-of-a-signal-area-to-detect-fixed-point

回答： Vimal Rathod 2021-6-7

Hello,

I would like to ask how can i select a specific area of a 20000x1 timesieries of an ECG signal? I want to take an area from the ECG's histogram in order to write a code for fixed/end point detection, but even though i tried with brush tool, i still can't. Is there any way? (i am new to matlab)

Thank you!!

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Answer 1

Vimal Rathod 2021-6-7

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https://ww2.mathworks.cn/matlabcentral/answers/848480-selection-of-a-signal-area-to-detect-fixed-point#answer_719220

You could use the "getsamples" function programmatically which returns subset of the timeseries in a specified time region. This is similar to brush where you get the rectangular area selecting the timeseries values.

Refer to the below link to know mroe about getsamples function

Subset of timeseries - MATLAB getsamples (mathworks.com)