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Tweak to running averages

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Don Cruse 2013-07-18 23:43:44 -05:00
parent ff54506e7f
commit 3d2c048c44
1 changed files with 5 additions and 1 deletions
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6
app/controllers/stats_controller.rb
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@ -450,9 +450,13 @@ class StatsController < ApplicationController
(set.fetch(i,0) + set.fetch(i+1,0) + set.fetch(i+2,0)) / 3.0
end
def set_three_month_avg(set,upper_bound)
(0..upper_bound-1).map { |i| three_month_avg(set, i) }
end
# sets "null" on first column and - if necessary - cleans up last two columns, which may have insufficient data
def compute_running_avg_array(set, upper_bound)
result = Array.new(upper_bound) { |i| three_month_avg(set, i) }
result = set_three_month_avg(set, upper_bound)
result[upper_bound-1] = result[upper_bound-1] * 3 if upper_bound == set.length
result[upper_bound-2] = result[upper_bound-2] * 3 / 2 if upper_bound > 1 and upper_bound == set.length
result[0] = "null"