 In other words, the red points are multiples of 6; the blue points are of the form "a multiple of 6, plus 2"; and the green points are multiples of 6 plus 4.An illuminating way of presenting the comet data is as a histogram.The function formula_1 can be normalized by dividing by the locally averaged value of "g", gav, taken over perhaps 1000 neighboring values of the even number "E".