Trend Logs (Max, Min Average)

[admin]

This example will calculate min/max/average for the past year data. Keep in mind that this is rather CPU and memory intensive calculation so it's not recommended to run it too often.

Code:

require('trends')

trends.NaN = 0 / 0

dates = {}
dates['start'] = os.date('*t')
dates['start'].year = dates['start'].year - 1
dates['end'] = os.date('*t')

values = trends.fetch('TREND_NAME_HERE', dates)

min, max, sum, cnt = math.huge, -math.huge, 0, 0

for _, value in ipairs(values) do
  if value == value then
    min = math.min(min, value)
    max = math.max(max, value)
    sum = sum + value
    cnt = cnt + 1
  end
end

avg = sum / math.max(1, cnt)

log(min, max, avg)