Re: help with simple data transform
- To: mathgroup at smc.vnet.net
- Subject: [mg37750] Re: [mg37734] help with simple data transform
- From: Selwyn Hollis <selwynh at earthlink.net>
- Date: Mon, 11 Nov 2002 05:10:11 -0500 (EST)
- References: <200211101038.FAA11793@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Here's one approach. Define
f[{x_, y___}] := {x, {y}}
Then map f through a list containing your lists:
In: f /@ {{n, n, n, n}, {n, n, n, n, n, n}, {n, n, n, n, n}}
Out: {{n, {n,n,n}}, {n, {n, n, n , n, n}}, {n, {n, n, n, n}}}
----
Selwyn Hollis
Terrell Mitchell wrote:
> I am trying to help a friend at a University create some plots of his
> data. I have a trial version of Mathematica and it looks like it will
> do the job, but I need help with a simple problem.
>
> I have written some code to massage the data and put it in forms for
> reading into Mathematica.
>
> I will be doing a surface plot and want to provide can provide my own
> triangulation data.
>
> I will have data of the form
> n n n n
> n n n n n n
> n n n n n
> n n
> I can read this into lists and end up with
> {n,n,n,n},{n,n,n,n,n,n},{n,n,n,n,n},{n,n}
> I need to turn this into
> {n,{n,n,n}},{n,{n,n,n,n,n}},{n,{n,n,n,n}},{n,{n}}
> to use as the triangulation data.
>
> Can some kind soul provide me with some Mathematica code to transfrom my
> data into the proper format. There are so many features, there must be
> some simple transformation code.
>
> Thank you in advance.
>
>
- References:
- help with simple data transform
- From: Terrell Mitchell <usenet@twocedars.mailshell.com>
- help with simple data transform