Why do you need to do this? It sounds like homework. Using multiple columns as
lookup keys is the normal way this is handled.
On August 28, 2019 7:10:34 AM PDT, Alex Naverniak <stopro...@gmail.com> wrote:
>Thank you.
>The problem is that I need multiple same size data structures for each
>item
>name. For example: Unique item name -"Table" has several (Lets say 5)
>subitems of 3 items in each("Size", "Price", "Qty"); Another item
>"Chair"
>has 4 subitems of the same structure (3 positions in each), etc. That
>list
>of furniture unique items may have indefinite number of triple
>subitems. I
>need to hace access to each position of subitem like [[1]][[3]][[2]]. I
>also need to dynamically add subitems and furniture items. The total
>size
>of furniture inventory is not known at the beginning. I hope it makes
>sense. Thank you.
>
>On Wed, Aug 28, 2019 at 2:18 AM Jeff Newmiller
><jdnew...@dcn.davis.ca.us>
>wrote:
>
>> Perhaps
>>
>> dta <- data.frame( SKU=c("4950","8488","1159"),
>>
>Price=c(10,15,3),Qty=c(24,144,16),ID=c("10208473","38447769","43759115")
>)
>>
>> Lists are not as easy to optimize performance with as tables are...
>unless
>> you have a specific reason to use them I would minimize your use of
>> single-element items in lists.
>>
>> On August 27, 2019 9:49:28 PM PDT, Jim Lemon <drjimle...@gmail.com>
>wrote:
>> >Hi Alex,
>> >At a guess you may want something like this:
>> >
>> >data.frame(item="SKU",price=10,qty=2,ID="00001")
>> >
>> >This produces a data frame with one row. You will probably want many
>> >more rows.
>> >
>> >Jim
>> >
>> >On Wed, Aug 28, 2019 at 2:21 PM Alex Naverniak <stopro...@gmail.com>
>> >wrote:
>> >>
>> >> Hi,
>> >> I am trying to create Inventory structure with item SKU and 3
>> >subitems like
>> >> "Price"; "Qty"; "ID". I tried
>> >list(SKU,list("Item1","Item2","Item3")). It
>> >> seem not to work. Please help with ideas. Thanks.
>> >> Alex
>> >>
>> >> [[alternative HTML version deleted]]
>> >>
>> >> ______________________________________________
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>> >
>> >______________________________________________
>> >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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>> >and provide commented, minimal, self-contained, reproducible code.
>>
>> --
>> Sent from my phone. Please excuse my brevity.
>>
--
Sent from my phone. Please excuse my brevity.
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