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Combining the running average methods

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This commit is contained in:
Don Cruse 2013-07-18 23:22:44 -05:00
parent 91e4717168
commit 5e6b82c3e5
1 changed files with 6 additions and 12 deletions
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18
app/controllers/stats_controller.rb
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@ -27,8 +27,8 @@ class StatsController < ApplicationController
done_in_last_15_months = put_events_into_month_buckets(actions_last12months, 16, :completed_at)
created_in_last_15_months = put_events_into_month_buckets(actions_last12months, 16, :created_at)
@actions_done_avg_last12months_array = make_running_avg_array(done_in_last_15_months, 13)
@actions_created_avg_last12months_array = make_running_avg_array(created_in_last_15_months, 13)
@actions_done_avg_last12months_array = compute_running_avg_array(done_in_last_15_months, 13)
@actions_created_avg_last12months_array = compute_running_avg_array(created_in_last_15_months, 13)
# interpolate avg for current month.
@interpolated_actions_created_this_month = interpolate_avg_for_current_month(@actions_created_last12months_array)
@ -454,19 +454,13 @@ class StatsController < ApplicationController
(set[0]*(1/percent) + set[1] + set[2]) / 3.0
end
def make_running_avg_array(set, upper_bound)
result = Array.new(upper_bound) { |i| three_month_avg(set, i) }
result[0] = "null"
result
end
# sets "null" on first column and cleans up last two columns, which have insufficient data
# 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[upper_bound-1] = result[upper_bound-1] * 3
result[upper_bound-2] = result[upper_bound-2] * 3 / 2 if upper_bound > 1
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"
result
end
end # unsolved, not triggered, edge case for set.length == upper_bound + 1
end