I'm sorry if it made no sense to my sentence. The next will be clearer. On Fri, Aug 3, 2012 at 9:14 AM, Colin Law <[email protected]> wrote:
> On 3 August 2012 13:00, Esmerino Jr <[email protected]> wrote: > > Michael Pavling, thanks for reply. > > > > Okay, i agree that is a array of hash : list.class => Array end > > list.last.class => Hash. > > But your solution only removes duplication and the sum of :val ? > > I think you need to make it more clear what you are trying to achieve. > The sentence " But your solution only removes duplication and the sum > of :val?" does not make sense. > > Colin > > > > > Tom Meinlschmid, thanks for reply. > > > > Not a test for job seekers :) > > > > Solution: > > > > list.inject(Hash.new(0)) { |hash, el| hash[el[:cod]] += el[:val] ; hash } > > > > On Fri, Aug 3, 2012 at 4:58 AM, Tom Meinlschmidt <[email protected] > > > > wrote: > >> > >> saw something similar somewhere as a test for job seekers :) > >> > >> so don't know if someone will help you as it's not so hard to solve > >> > >> tom > >> > >> On Aug 1, 2012, at 15:25 , Esmerino Costa <[email protected]> wrote: > >> > >> > I have a hash like so: > >> > > >> > list=[ > >> > {:cod => "0001", :name => "name1", :val => 10}, > >> > {:cod => "0001", :name => "name1", :val => 12}, > >> > {:cod => "0002", :name => "name2", :val => 13}, > >> > {:cod => "0002", :name => "name2", :val => 14}, > >> > {:cod => "0002", :name => "name2", :val => 14}, > >> > {:cod => "0004", :name => "name4", :val => 16}, > >> > {:cod => "0004", :name => "name4", :val => 16}, > >> > {:cod => "0004", :name => "name4", :val => 17}, > >> > {:cod => "0005", :name => "name5", :val => 17}, > >> > {:cod => "0005", :name => "name5", :val => 17}, > >> > {:cod => "0005", :name => "name5", :val => 17}, > >> > {:cod => "0006", :name => "name6", :val => 110}, > >> > {:cod => "0006", :name => "name6", :val => 10}, > >> > ] > >> > What I would like to learn how to do is how to remove a record if it > is > >> > duplicate end sum values :val. > >> > > >> > > >> > -- > >> > You received this message because you are subscribed to the Google > >> > Groups "Ruby on Rails: Talk" group. > >> > To post to this group, send email to > [email protected]. > >> > To unsubscribe from this group, send email to > >> > [email protected]. > >> > To view this discussion on the web visit > >> > https://groups.google.com/d/msg/rubyonrails-talk/-/SJr0rc22ScgJ. > >> > For more options, visit https://groups.google.com/groups/opt_out. > >> > > >> > > >> > >> -- > >> > >> > =============================================================================== > >> Tomas Meinlschmidt, MS {MCT, MCP+I, MCSE, AER}, NetApp Filer/NetCache > >> > >> www.meinlschmidt.com www.maxwellrender.cz www.lightgems.cz > >> > >> > =============================================================================== > >> > >> -- > >> You received this message because you are subscribed to the Google > Groups > >> "Ruby on Rails: Talk" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]. > >> For more options, visit https://groups.google.com/groups/opt_out. > >> > >> > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Ruby on Rails: Talk" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit https://groups.google.com/groups/opt_out. > > > > > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
