From: Stuart Clarke <stuart.clarke1986@...>
Date: 2009-02-04T03:34:51+09:00
Subject: Re: Hash counting

Thanks for getting back to me.

I have done similar to you in Fxri and got those results earlier it 
seems you may be correct and eventdateID and id, cnt do not like 
eachother so much. After doing an inspect on eventdateID array I only 
get the following:

["WedAug062008"]

This is strange  as it seems to missing all the other data. For your 
information in my actual code I do @alerts.push(counts)

        counts = Hash.new(0)
        eventdateID.each {|d| counts[d] += 1}
        @alerts.push(counts)
        counts.each do |id,cnt|

and get what is expected:

MonFeb0220091
MonFeb0220091
MonFeb0220091
MonFeb0220091
MonFeb0220091
MonFeb0220091
WedAug062008
WedAug062008

Its the next step counts.each do |id,cnt| which is the problem.

> If each element in the array eventDateID is stored in the hash as a
> different key (which is what seems to be happening), maybe what is
> inside the array are not strings, but another class that has a
> different implementation of eql?.

Not sure what you mean by this. This is how I make eventdateID, just 
regular expressions on a string from  a struct:

eventdateID.push eventsbydate.gsub(/\s/, '')[0..7] + 
eventsbydate[26..30]

Many thanks

Jes炭s Gabriel y Gal叩n wrote:
> On Tue, Feb 3, 2009 at 6:16 PM, Stuart Clarke
> <stuart.clarke1986@gmail.com> wrote:
> 
>>> WedAug062008
>>>> end
>> 1
>> 1
>> 1
>> 1
>> 1
>>
> 
> Sorry Stuart, can you show the exact code that produces that output
> (including the puts that you are using to print those values)? Cause
> this works for me as it is:
> 
> 
> irb(main):009:0> eventDateID = %w{MonFeb0220091 MonFeb0220091
> MonFeb0220091 MonFeb0220091 MonFeb0220091 MonFeb0220091 WedAug062008
> WedAug062008}
> => ["MonFeb0220091", "MonFeb0220091", "MonFeb0220091",
> "MonFeb0220091", "MonFeb0220091", "MonFeb0220091", "WedAug062008",
> "WedAug062008"]
> irb(main):010:0> counts = Hash.new(0)
> => {}
> irb(main):011:0> eventDateID.each {|d| counts[d] += 1}
> => ["MonFeb0220091", "MonFeb0220091", "MonFeb0220091",
> "MonFeb0220091", "MonFeb0220091", "MonFeb0220091", "WedAug062008",
> "WedAug062008"]
> irb(main):012:0> counts
> => {"MonFeb0220091"=>6, "WedAug062008"=>2}
> irb(main):013:0> @alerts = []
> => []
> irb(main):014:0> counts.each do |id, cnt|
> irb(main):015:1* @alerts.push(id) if cnt >= 5
> irb(main):016:1> end
> => {"MonFeb0220091"=>6, "WedAug062008"=>2}
> irb(main):017:0> @alerts
> => ["MonFeb0220091"]
> 
> 
> If each element in the array eventDateID is stored in the hash as a
> different key (which is what seems to be happening), maybe what is
> inside the array are not strings, but another class that has a
> different implementation of eql?.
> Can you inspect the eventDateID array to check that?
> 
> Jesus.

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