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Re: Time Series Analysis on Distributed Merits in the forum (daily, weekly, monthly)
by
tranthidung
on 25/11/2019, 07:42:29 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 677, 655, and 652, respectively; whislt the lowest days are Friday, Saturday, and Sunday at 587, 593, and 618, respectively.
- In means, the highest days are Monday, Wednesday, and Thursday, at 760, 705, and 699, respectively; whilst the lowest days are Friday, Saturday, and Sunday, at 620, 621, and 688, 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 |      91.0     687.5     344.1     618.0     512.0     770.0     394.0    2753.0
   Monday |      92.0     759.3     412.0     677.0     568.5     799.5     313.0    3854.0
  Tuesday |      91.0     687.0     193.1     642.0     586.0     737.0     384.0    1327.0
Wednesday |      91.0     704.9     211.5     655.0     559.0     769.0     394.0    1476.0
 Thursday |      91.0     698.2     268.0     652.0     541.0     768.0     348.0    2510.0
   Friday |      91.0     619.8     209.1     587.0     500.0     683.0     349.0    1706.0
 Saturday |      91.0     621.0     211.3     593.0     478.0     690.0     295.0    1441.0
----------+--------------------------------------------------------------------------------
    Total |     638.0     682.6     277.9     627.5     531.0     751.0     295.0    3854.0
-------------------------------------------------------------------------------------------

Box plots
Outliers displayed as red circles.

Outliers non-displayed.