Export time series data as csv

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.

Answer 1

[EmirBeg]

data = [timestamps movavgval]; %or however your arrays are called
writematrix(data,'data.csv');

https://de.mathworks.com/help/matlab/ref/writematrix.html

[Ross Thompson]

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]

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

Answer 2

[KSSV]

Read about writetable