linepowerthreshold

  LINEPOWERTHRESHOLD - compute linepowerthreshold function for values of x

   [CURVE] = LINEPOWERTHRESHOLD(X, SLOPE, OFFSET, THRESHOLD, EXPONENT)

   Calculates

   CURVE = OFFSET + SLOPE * RECTIFY(X - THRESHOLD).^EXPONENT

  See also: QUICKREGRESSION (simple linear fit), LINEPOWERTHRESHOLDFIT

  Jason Osik and Steve Van Hooser