When exporting an outing to csv, excel, matlab, etc, there is an option to change the output sampling frequency, however the interpolation method is not explicitely stated.  Based on text from the Pi Toolbox User Guide, it seems reasonable to assume linear interpolation.  However, for our application we must justify that no data corruption (e.g. overshoot) occured during the interpolation of the data and therefore must know the method used.  What is the interpolation method used on export of a pds file to a csv/excel/mat file?  Thanks!
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