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robofish-io-evaluate speeds output displays unexpected values

I know the speed for the data evaluated should be 8cm/s, but robofish-io-evaluate speeds gave me this: image

Note that each timestep in my .hdf5 files represents 1/25 seconds (=the frequency in 25 hz) and 0.32 * 25 is exactly 8, this might help locating the problem.

Steps to reproduce:

  • Generate .hdf5 files with robofish.io from tracks where you known the speed, make sure you pass frequency_hz correctly to the robofish.io File
  • use robofish-io-evaluate speeds on those files