vlt.neuro.reverse_correlation.hartley.check

  CHECK - check a rapid procedure for drawing Hartley stimli

  OUT = vlt.neuro.reverse_correlation.hartley.check(S, KX, KY, M)

  Draws a Hartley stimulus where the stimulus has MxM pixels,
  for Hartley numbers KX and KY. Also shows accuracy of the 
  rapid procedure reconstruction and the full Hartley calculation.
  S should be -1 or 1 and indicates the sign (phase) of the stimulus.

  The complete workspace variables used to build the stimulus and
  draw the stimulus are returned in OUT, for diagnostic purposes.

  See also: vlt.neuro.reverse_correlation.hartley.build, vlt.neuro.reverse_correlation.hartley.draw

  Example:
     out = vlt.neuro.reverse_correlation.hartley.check(1,5,15,500);