Re: list of lists
- To: mathgroup at smc.vnet.net
- Subject: [mg15451] Re: [mg15425] list of lists
- From: BobHanlon at aol.com
- Date: Mon, 18 Jan 1999 04:21:52 -0500
- Sender: owner-wri-mathgroup at wolfram.com
In a message dated 1/13/99 10:32:42 PM, wgrebe at cityweb.de writes:
>I have a 2-dimensional list, which is very large. It consists of 1024
>sublists, each with 11 elements.
>I want to have a smaller list, where every 5th sublist is element. What
>can I do?
>
A = Array[a, {15, 3}];
Partition[A, 5]// Transpose // First
{{a[1, 1], a[1, 2], a[1, 3]}, {a[6, 1], a[6, 2], a[6, 3]},
{a[11, 1], a[11, 2], a[11, 3]}}
Bob Hanlon