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Re: Time Series Analysis on Distributed Merits in the forum (daily, weekly, monthly)
by
tranthidung
on 14/09/2019, 09:01:09 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 607, respectively.
- In means, the highest days are Monday, Wednesday, and Tuesday, at 723, 695, and 691, respectively; whilst the lowest days are Friday, Saturday, and Sunday, at 607, 613, and 668, 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 |      81.0     667.4     280.3     607.0     505.0     777.0     394.0    2464.0
   Monday |      82.0     722.9     261.7     663.0     563.0     797.0     313.0    1863.0
  Tuesday |      81.0     690.1     201.6     639.0     588.0     737.0     384.0    1327.0
Wednesday |      81.0     695.0     202.7     653.0     558.0     760.0     394.0    1271.0
 Thursday |      81.0     681.4     193.2     652.0     541.0     766.0     348.0    1335.0
   Friday |      81.0     606.8     191.1     581.0     500.0     651.0     349.0    1706.0
 Saturday |      81.0     612.6     198.8     588.0     478.0     689.0     295.0    1410.0
----------+--------------------------------------------------------------------------------
    Total |     568.0     668.1     223.6     625.5     526.5     742.0     295.0    2464.0
-------------------------------------------------------------------------------------------

Box plots
Outliers displayed as red circles.

Outliers non-displayed.