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Re: How to Invert Rows and Columns for a Grid of List of Lists

  • To: mathgroup at smc.vnet.net
  • Subject: [mg125924] Re: How to Invert Rows and Columns for a Grid of List of Lists
  • From: "Nasser M. Abbasi" <nma at 12000.org>
  • Date: Sat, 7 Apr 2012 05:57:21 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <jlmf9m$mhp$1@smc.vnet.net>
  • Reply-to: nma at 12000.org

On 4/6/2012 5:07 AM, brtubb at pdmusic.org wrote:
> Consider two lists
>
> a = {{1,2,3},{4,5,6},{7,8,9}};
> b = {{1,4,7},{2,5,8},{3,6,9}};
>
> I want to transform a "into" b

Transpose[]?

a = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
b = Transpose[a]

---> {{1, 4, 7}, {2, 5, 8}, {3, 6, 9}}

--Nasser



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