From: Christian <ozric@...>
Date: 2007-11-06T03:05:03+09:00
Subject: compare 2 "arrays"

Hello,

sorry i'm  a beginner with ruby and hanging on
a problem comparing two arrays?

Have anybody an advice what's wrong in my logic, beacuse printing of k
and row2["id"] like
p "#{k} = #{row2["id"]}" works!?

many thanks ,Christian


rows=0
ngs=Array.new

# some thousand id's
FCSV.foreach("#{path}#{part1}",:headers =>true ,:col_sep => "\t")  do |
row|
   ngs.push(row["id"])
 end

 # a lot of millions
FCSV.foreach("#{path}#{part2}",:headers =>true ,:col_sep => "\t")  do |
row2|
    ngs.each do |k|
      if  k == row2["id"]
         p row2
         end
    end
 end



mp_hash.rb:36: undefined local variable or method `found' for
main:Object (NameError)
	from cmp_hash.rb:34:in `each'
	from cmp_hash.rb:34
	from c:/ruby/lib/ruby/gems/1.8/gems/fastercsv-1.2.0/lib/faster_csv.rb:
1429:in `each'
	from c:/ruby/lib/ruby/gems/1.8/gems/fastercsv-1.2.0/lib/faster_csv.rb:
990:in `foreach'
	from c:/ruby/lib/ruby/gems/1.8/gems/fastercsv-1.2.0/lib/faster_csv.rb:
1162:in `open'
	from c:/ruby/lib/ruby/gems/1.8/gems/fastercsv-1.2.0/lib/faster_csv.rb:
989:in `foreach'
	from cmp_hash.rb:33