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Re: Time Series Analysis on Distributed Merits in the forum (daily, weekly, monthly)
by
tranthidung
on 22/09/2019, 04:17:09 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 & Thursday, and Tuesday at 662, 653 (both Wednesday & Thursday), and 639, respectively; whislt the lowest days are Friday, Saturday, and Sunday at 577, 588, and 608, respectively.
- In means, the highest days are Monday, Wednesday, and Tuesday, at 722, 695, and 688, respectively; whilst the lowest days are Friday, Saturday, and Sunday, at 606, 610, 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 |      82.0     667.4     278.6     607.5     505.0     777.0     394.0    2464.0
   Monday |      83.0     721.1     260.6     662.0     563.0     797.0     313.0    1863.0
  Tuesday |      82.0     688.0     201.1     638.5     586.0     737.0     384.0    1327.0
Wednesday |      82.0     694.4     201.5     652.5     558.0     760.0     394.0    1271.0
 Thursday |      82.0     682.5     192.2     653.0     541.0     768.0     348.0    1335.0
   Friday |      82.0     605.3     190.4     576.5     497.0     651.0     349.0    1706.0
 Saturday |      82.0     609.8     199.2     588.0     469.0     689.0     295.0    1410.0
----------+--------------------------------------------------------------------------------
    Total |     575.0     667.0     222.9     625.0     525.0     742.0     295.0    2464.0
-------------------------------------------------------------------------------------------

Box plots
Outliers displayed as red circles.

Outliers non-displayed.