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Eggeling-Lab-Microscope-Software / TRAIT2D

TRAIT2D is a cross-platform Python software package with compilable graphical user interfaces (GUIs) to support Single Particle Tracking experiments.
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Runaway "Divide by Zero" warnings in background of analysis GUI #74

Open FReina opened 2 years ago

FReina commented 2 years ago

From the review by Xavier Michalet in the associated paper, the testing of the analysis GUI on one of the test CSV files produces the following warnings

 c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:22: RuntimeWarning: divide by zero encountered in true_divide
  return D + delta**2 / (2*t*(1-2*self.R*self.dt/t))
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:22: RuntimeWarning: invalid value encountered in multiply
  return D + delta**2 / (2*t*(1-2*self.R*self.dt/t))
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:34: RuntimeWarning: divide by zero encountered in true_divide
  return D_micro * (tau/t) * (1 - np.exp(-t/tau)) + \
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:34: RuntimeWarning: invalid value encountered in multiply
  return D_micro * (tau/t) * (1 - np.exp(-t/tau)) + \
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:35: RuntimeWarning: divide by zero encountered in true_divide
  delta ** 2 / (2 * t * (1 - 2 * self.R * self.dt / t))
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:35: RuntimeWarning: invalid value encountered in multiply
  delta ** 2 / (2 * t * (1 - 2 * self.R * self.dt / t))
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:48: RuntimeWarning: divide by zero encountered in true_divide
  D_micro * (tau/t) * (1 - np.exp(-t/tau)) + \
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:48: RuntimeWarning: invalid value encountered in multiply
  D_micro * (tau/t) * (1 - np.exp(-t/tau)) + \
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:49: RuntimeWarning: divide by zero encountered in true_divide
  delta ** 2 / (2 * t * (1 - 2 * self.R * self.dt / t))
c:\xxxxx\trait2d test\lib\site-packages\trait2d\analysis\models.py:49: RuntimeWarning: invalid value encountered in multiply
  delta ** 2 / (2 * t * (1 - 2 * self.R * self.dt / t))

These need to be looked at, and eventually addressed in the documentation.