Error using interp1>re​shapeAndSo​rtXandV (line 424) X and V must be of the same length.

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Hello,
I geht this error message when I try to derive my acceleration of the car. I think there is a size problem, but I don't know how to solve it.
The data is measured from a car.

Accepted Answer

Stephen23
Stephen23 on 9 Oct 2019
Edited: Stephen23 on 9 Oct 2019
Assuming that meas.acc.data and meas.acc.time are vectors with the same number of elements, then diff on the data vector will return a numeric vector with one element fewer than the time vector, so meas.jerk.data and meas.jerk.time will likely have mismatching sizes.
One easy solution is to take the time as the mean of adjacent time points, e.g.:
meas.jerk.time = (meas.acc.time(1:end-1) + meas.acc.time(2:end)) ./ 2;
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