vis.oridir.rotatedircurve

  ROTATEDIRCURVE - rotate a direction curve so that it's highest value is at a defined place

   NEWCURVE = vlt.neuro.vision.oridir.rotatedircurve(ANGLES, RESPONSES, PREF_ANGLE_ASSIGNMENT)

   Rotates the direction tuning curve measured at angles ANGLES and 
   with responses RESPONSES so that the maximum response is at PREF_ANGLE_ASSIGNMENT.

   ANGLES are assumed to run from 0 .. 360.

   NEWCURVE is the shifted response curve that can be plotted with the existing
   ANGLES measurements.

   The function also has a form:

   NEWCURVE = vlt.neuro.vision.oridir.rotatedircurve(ANGLES, RESPONSES, PREF_ANGLE_ASSIGNMENT, ANCHOR_RESPONSES)

   That will shift the curve RESPONSES based on the responses of a different curve
   ANCHOR_RESPONSES. This is useful, for example, for shifting the surround tuning
   curve with respect to the responses of a center tuning curve, for example.