How to extract data from two separate tabs

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Sam
Sam 2021년 1월 21일
편집: Matt Gaidica 2021년 1월 22일
I have heart rate and time in two columns. I am going to filter heart rates above 95 bpm. However, in another two columns I have certain "events" that occurred throughout the recording and the times the events occurred. The time of the events don't necessarily match up with the time of the heart rates I want to extract. Tips on creating a script to filter out the heart rates above 95 along with the event that precedes the high heart rate??

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Matt Gaidica
Matt Gaidica 2021년 1월 22일
The easiest way to think about this would be using a simple series find statements and the returned indexes to do time comparisons, as well as pull event type.
Post a sample of your actual data, I can imagine some caveats and best practices depending on how it's formatted.
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Matt Gaidica
Matt Gaidica 2021년 1월 22일
Sure thing. Try this:
hrIds = find(Data{:,'Heart Rate'} > 95);
hrTimes = Data{hrIds,'Heart Rate Times'};
eventCodes = NaN(1,numel(hrTimes));
for ii = 1:numel(hrTimes)
precTimeId = find(Data{:,'Event Times'} < hrTimes(ii),1,'last');
if ~isempty(precTimeId)
eventCodes(ii) = Data{precTimeId,'Event Code'};
end
end
You have some heart rate times that come before the first event, so those are left as NaN.

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