How to convert time series table into an array and save as an excell file?

I have data collected from accelerometers, and that data is saved in a timetable.

I have saved that timetable data as a .mat file.

The data in this .mat file is of the duration data type.

I used the table2array function to convert this table to array.

Following is my code and data set that I used.

load('2023_02_16_F300_NSH_Free_NIacc_data_1.mat', 'NI_Data')

New = table2array(NI_Data)

When I use that function, it indicates that all of my variables as sec values, and data type shows as duration.

How I can convert a time series table into an array as data format as double and how to remove the suffix sec at the end of each data?

Thank you.

[Walter Roberson]

https://www.mathworks.com/help/matlab/ref/writetimetable.html ?

[Askic V]

Wow, it seems that Matlab has a built in function for just about everything that one can need.

Answer 1

[Askic V]

I think this code could help you:

%load('2023_02_16_F300_NSH_Free_NIacc_data_1.mat', 'NI_Data')
load(websave('2023_02_16_F300_NSH_Free_NIacc_data_1.mat','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1299495/2023_02_16_F300_NSH_Free_NIacc_data_1.mat'))
New = table2array(NI_Data);

time_sec = seconds(New(:,1));
acc_1 = seconds(New(:,2));

plot(time_sec, acc_1)

Regarding saving into an Excel file, I suggest to look this part of the documentation:

https://www.mathworks.com/help/matlab/import_export/exporting-to-excel-spreadsheets.html

Matlab has an excellent documentation with a lot of examples.

Answer 2

[Corey Silva]

You can use writetimetable to write a timetable to an excel spreadsheet without any conversions needed.