The symbol Histogram is used as a key in the hash table returned by the function statistics. It one of the summary statistics for a given data sample.

i1 : s=sample(ER(6,3,0.2),100); |

i2 : myStats = statistics(s, dim@@ideal); |

i3 : myStats.Histogram o3 = Tally{1 => 20} 2 => 61 3 => 17 4 => 2 o3 : Tally |

- statistics -- generate statistics for a sample
- ShowTally -- optional input to choose if the tally is to be returned