Hamming Selection, Avg. Type Menu
Hamming is closer to exponential averaging than weighted averaging. Hamming
employs a sine wave curve to calculate an average. If you think of a regular
weighted average as a forty-five degree line bisecting 0 on an x axis and 90 on a
y axis, any line drawn from the x axis will intersect the bisecting line in a
linear progression. In a daily time base, a ten-period weighted average will
be weighted 100% on the current day, and 50% five days ago. By contrast,
Hamming's sine wave curve creates a non-linear progression, weighting current and
recent data much more heavily than older data:
