From: Valentino Lun <sumwo@...>
Date: 2009-02-16T19:00:19+09:00
Subject: How to do this complicated logic in ruby

Dear all

I have an array with size around 1000, I want to perform some data
checking and correction in this array.

For instance, the first record of this array is a hash, as follow
my_array[0] = {"server"=>"AHN", "hosp"=>"AHN", "loc"=>"PC1",
"pspec"=>"ANA", "number"=>"1", "pcat"=>"1"}

server  hosp  loc   pspec   pcat
AHN     AHN   PC1   ANA     1
PWH     AHN   PC1   ANA     1
NDH     AHN   PC1   ANA     2     <= This pcat value need update in
array1
TMH     AHN   PC1   ANA     2     <= This pcat value need update in
array1
.......
.....
...
(around 1000 records)

When keys hosp, loc, pspec has the same values, their pcat must be
identical. So, there is problem in the last two records, the key pcat
should be 1, because the pcat is correct if array["server"] equal to
array["hosp"].

I cannot figure out the logic to doing this in ruby (even in other
language). Can someone give me some hints on this? Thanks

Many thanks
Valentino
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