Dear Stata users,

Nick Cox had written a command named -t2way5- (SSC) to execute Tukey's Two-Way Analysis by Medians. It gives results that seems interesting, however I can't fully appreciate it. I also cannot find more materials about the Tukey's Two-Way Analysis by Medians. What's the difference between Tukey's model and log-linear model that is usually used to fit contingency table?
https://ideas.repec.org/c/boc/bocode....html#download

Code:
webuse citytemp2
table region agecat, cont(media tempjan)
t2way5 region agecat, summari(tempjan)
Code:
. table region agecat, cont(media tempjan)

-------------------------------
Census    |       agecat      
Region    | 19-29  30-34    35+
----------+--------------------
       NE |  23.5   29.6   31.3
  N Cntrl |  20.2   25.5  29.55
    South |  39.2   50.6   65.7
     West |  44.6   54.9   57.2
-------------------------------


. t2way5 region agecat, summari(tempjan)

Grand effect:      29.6

Row       Label         Effect
------------------------------
1         NE                0
2         N Cntrl       -2.35
3         South            21
4         West           25.3

Col       Label         Effect
------------------------------
1         19-29         -10.3
2         30-34             0
3         35+        2.299999