Export time series data as csv

2021 5 4
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更新时间：2021 5 4
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I have a csv with 2 columns in, the first is the timestamp (2021-02-27 12:00:00), and the 2nd is heartrates. Ive calculated a moving average of the heartrate coulmn and wish to export the moving average values along with the timestamps as a new csv. Everything uve tried doesnt seem to work so any help would be much apprecieted.

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回答（2 个）

EmirBeg
EmirBeg 2021-5-4

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data = [timestamps movavgval]; %or however your arrays are called
writematrix(data,'data.csv');
https://de.mathworks.com/help/matlab/ref/writematrix.html

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Ross Thompson
Ross Thompson 2021-5-4
I get the following error when i tried this
Error using datetime/horzcat (line 1387)
All inputs must be datetimes or date/time character vectors or date/time strings.
Error in movingaverage (line 11)
data1 = [data.Timestamp timeseriesmoving_average]
Ross Thompson
Ross Thompson 2021-5-4
data = readtable('2021-02-01.csv');
timeseriesmoving_average = movmean(data.HeartRate, minutes(20), 'SamplePoints', data.Timestamp);
data1 = [data.Timestamp, timeseriesmoving_average]
writematrix(data1,'data.csv');
Heres the code i used

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