How to extract data from two separate tabs

6 views (last 30 days)
Sam on 21 Jan 2021
Edited: Matt Gaidica on 22 Jan 2021
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??

Answers (1)

Matt Gaidica
Matt Gaidica on 22 Jan 2021
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.
Matt Gaidica
Matt Gaidica on 22 Jan 2021
Edited: Matt Gaidica on 22 Jan 2021
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'};
You have some heart rate times that come before the first event, so those are left as NaN.

Sign in to comment.


Find more on Tables in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!