From: William James <w_a_x_man@...>
Date: 2008-09-03T12:19:35+09:00
Subject: Re: Parsing a CSV file column-wise

On Sep 1, 6:10 am, Chris Lowis <chris.lo...@gmail.com> wrote:
> Is there a short-cut to parsing a CSV file column-wise using any of
> the available Ruby CSV libraries ?
>
> For example, at the moment I have:
>
>  require 'csv'
>  data = "1,2,3\n4,5,6\n7,8,9"
>  CSV::parse(data)   # => [["1", "2", "3"], ["4", "5", "6"], ["7", "8",
> "9"]]
>
> But what I'd like is:
>
>  CSV::parse(data,'columnwise')   # => [["1", "4", "7"], ["2", "5",
> "8"], ["3", "6", "9"]]

[["1", "2", "3"], ["4", "5", "6"], ["7", "8", "9"]].transpose
    ==>[["1", "4", "7"], ["2", "5", "8"], ["3", "6", "9"]]