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Re: Time Series Analysis on Distributed Merits in the forum (daily, weekly, monthly)
by
tranthidung
on 24/10/2019, 09:29:02 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 675, 654, and 651, respectively; whislt the lowest days are Friday, Saturday, and Sunday at 583, 588, and 608, respectively.
- In means, the highest days are Monday, Wednesday, and Tuesday, at 724, 696, and 686, respectively; whilst the lowest days are Friday, Saturday, and Sunday, at 607, 608, and 665, 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 |      86.0     664.1     273.1     607.5     505.0     770.0     394.0    2464.0
   Monday |      87.0     723.8     255.6     675.0     563.0     797.0     313.0    1863.0
  Tuesday |      86.0     686.0     196.8     639.5     586.0     734.0     384.0    1327.0
Wednesday |      86.0     695.1     198.5     654.0     558.0     760.0     394.0    1271.0
 Thursday |      86.0     675.3     190.9     650.5     533.0     766.0     348.0    1335.0
   Friday |      86.0     606.2     186.4     582.5     500.0     651.0     349.0    1706.0
 Saturday |      86.0     607.4     195.4     588.0     474.0     682.0     295.0    1410.0
----------+--------------------------------------------------------------------------------
    Total |     603.0     665.5     219.1     624.0     525.0     737.0     295.0    2464.0
-------------------------------------------------------------------------------------------

Box plots
Outliers displayed as red circles.

Outliers non-displayed.