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Re: Time Series Analysis on Distributed Merits in the forum (daily, weekly, monthly)
by
tranthidung
on 28/09/2019, 13:12:47 UTC
Medians and means of intra-day merits over days of weeks.
Colors:
  • Green: highest.
  • Red: Lowest.

- In median, the highest days are Monday, Wednesday, and Thursday at 663, 653, and 652, respectively; whislt the lowest days are Friday, Saturday, and Sunday at 581, 588, and 608, respectively.
- In means, the highest days are Monday, Wednesday, and Tuesday, at 722, 696, and 687, respectively; whilst the lowest days are Friday, Saturday, and Sunday, at 606, 610, and 667, respectively.
- Monday has still been the highest day in terms of median and mean of intra-day merits over weeks, in contrast Friday is the lowest days in terms of median, and mean of intra-day merits over weeks.

Calendar day is in GMT time.
To take away all doubt: the first Merit was this one:
Code:
1516831941 1 2818066.msg28853325 35 877396
Use EpochConverter to convert 1516831941 (Unix Time) to GMT: Wednesday 24 January 2018 22:12:21.

Basic statistics:
Code:
. tabstat merit, s(n mean sd p50 p25 p75 min max) format(%9.1f) by(dofw)

Summary for variables: merit
     by categories of: dofw

     dofw |         N      mean        sd       p50       p25       p75       min       max
----------+--------------------------------------------------------------------------------
   Sunday |      83.0     666.9     276.9     608.0     505.0     777.0     394.0    2464.0
   Monday |      84.0     721.2     259.0     663.0     563.0     794.0     313.0    1863.0
  Tuesday |      83.0     686.7     200.3     638.0     581.0     737.0     384.0    1327.0
Wednesday |      83.0     695.5     200.5     653.0     558.0     760.0     394.0    1271.0
 Thursday |      83.0     681.3     191.4     652.0     541.0     768.0     348.0    1335.0
   Friday |      83.0     605.3     189.2     581.0     497.0     651.0     349.0    1706.0
 Saturday |      83.0     609.8     198.0     588.0     469.0     689.0     295.0    1410.0
----------+--------------------------------------------------------------------------------
    Total |     582.0     666.8     221.7     624.0     528.0     738.0     295.0    2464.0
-------------------------------------------------------------------------------------------

Box plots
Outliers displayed as red circles.

Outliers non-displayed.