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comp.lang.ruby

Array read to seperate items

Stuart Clarke

3/31/2009 3:28:00 PM

Hi all,

This might be a stupid question.

I have an array which gets data added to in a loop like so:

a b c d e f
a b c d e f

I am aware calling join("\n")on this array will separate each line of
the array with a new line, but I want to separate the individual items
and load them into there own arrays for example

array a = a, a
array b = b, b

etc etc.

In summary I want to output my data exactly how it is, but because I
want to load into structured columns on my GUI I want the data broken
down so it can be loaded to the relevant columns.

Thanks in advance
--
Posted via http://www.ruby-....
3 Answers

Rob Biedenharn

3/31/2009 3:56:00 PM

0

On Mar 31, 2009, at 11:27 AM, Stuart Clarke wrote:

> Hi all,
>
> This might be a stupid question.
>
> I have an array which gets data added to in a loop like so:
>
> a b c d e f
> a b c d e f
>
> I am aware calling join("\n")on this array will separate each line of
> the array with a new line, but I want to separate the individual items
> and load them into there own arrays for example
>
> array a = a, a
> array b = b, b
>
> etc etc.
>
> In summary I want to output my data exactly how it is, but because I
> want to load into structured columns on my GUI I want the data broken
> down so it can be loaded to the relevant columns.
>
> Thanks in advance
> --
> Posted via http://www.ruby-....


Array#transpose

irb> [[1,2,3,4,5],%w[a b c d e]].transpose
=> [[1, "a"], [2, "b"], [3, "c"], [4, "d"], [5, "e"]]

-Rob

Rob Biedenharn http://agileconsult...
Rob@AgileConsultingLLC.com

matt

3/31/2009 4:07:00 PM

0

Stuart Clarke <stuart.clarke1986@gmail.com> wrote:

> I have an array which gets data added to in a loop like so:
>
> a b c d e f
> a b c d e f
>
> I am aware calling join("\n")on this array will separate each line of
> the array with a new line, but I want to separate the individual items
> and load them into there own arrays for example
>
> array a = a, a
> array b = b, b

Are you talking about something like this?

arr = ["hey ho hey nonnie no", "bee bop a ding dong", "a b c d e"]
arr = arr.map {|s| s.split(" ")}
arr = arr.shift.zip(*arr)
p arr
#=> [["hey", "bee", "a"], ["ho", "bop", "b"], ["hey", "a", "c"],
["nonnie", "ding", "d"], ["no", "dong", "e"]]

m.

--
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matt

3/31/2009 4:10:00 PM

0

matt neuburg <matt@tidbits.com> wrote:

> Stuart Clarke <stuart.clarke1986@gmail.com> wrote:
>
> > I have an array which gets data added to in a loop like so:
> >
> > a b c d e f
> > a b c d e f
> >
> > I am aware calling join("\n")on this array will separate each line of
> > the array with a new line, but I want to separate the individual items
> > and load them into there own arrays for example
> >
> > array a = a, a
> > array b = b, b
>
> Are you talking about something like this?
>
> arr = ["hey ho hey nonnie no", "bee bop a ding dong", "a b c d e"]
> arr = arr.map {|s| s.split(" ")}
> arr = arr.shift.zip(*arr)

Last line cute but unnecessary, forgot about "transpose" (see msg from
Rob B.):

arr = ["hey ho hey nonnie no", "bee bop a ding dong", "a b c d e"]
arr = arr.map {|s| s.split(" ")}.transpose
p arr
#=> [["hey", "bee", "a"], ["ho", "bop", "b"], ["hey", "a", "c"],
["nonnie", "ding", "d"], ["no", "dong", "e"]]

m.
--
matt neuburg, phd = matt@tidbits.com, http://www.tidbits...
Leopard - http://www.takecontrolbooks.com/leopard-custom...
AppleScript - http://www.amazon.com/gp/product/...
Read TidBITS! It's free and smart. http://www.t...