Convert a multiple channel raw ECG to readable .mat format

Hi,

I have this raw holter ecg in .dat format (see attached file). The timestamp is in column A; Lead I-III-II and V in column D-E-F-G. I'd want to convert/save them exactly like this image below in .mat for each lead:

I have tried to import data and save it under .mat but can not extract the timestamp. What I get is only a column with no meaning.

Answer 1

[Ganesh]

Hi Ngoc ,

I understand that you have been trying to import the file with multiple columns and then save to a .mat file. In your screenshot, we can see that the data variable has only 1 row of entry. This would be due to an incorrect import of “.dat” files. Kindly refer to the following answer on importing “.dat” files correctly into MATLAB:

https://in.mathworks.com/matlabcentral/answers/79885-how-to-read-tabular-data-from-dat-files-into-matlab

Once the data has been imported in the right format, you can use the “save()” function to save the variable to a “.mat” file. Please refer to the documentation below:

https://in.mathworks.com/help/matlab/ref/save.html