I need to interpolate over some data but I'm not able to do it myself. Right now I've got data for CGM measurement with its corresponding date and time (sortedCGM.mat) and HR measurement with its corresponding date and time (sortedData.mat). I need to get an interpolated HR at every CGM measurement.
The code I currently use is the following:
int_CGM = interp1(sortedCGM(:,1),sortedCGM(:,2),sortedData(:,2), 'spline');
Here I converted the date and time to datenum values but it stil gave the following error:
Error using interp1>reshapeAndSortXandV (line 435)
X must be a vector of type double or single.
Error in interp1 (line 128)
[X,V,orig_size_v] = reshapeAndSortXandV(X,V);
Can anybody help me?