Re: Creating a new table using values from a column in another table,
- To: mathgroup at smc.vnet.net
- Subject: [mg66385] Re: [mg66346] Creating a new table using values from a column in another table,
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Thu, 11 May 2006 02:15:28 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
data={{x1,y1},{x2,y2},{x3,y3}};
{#[[1]],f[#[[1]]]}&/@data
{#,f[#]}&/@data[[All,1]]
{#,f[#]}&/@First/@data
data/.{x_,_}:>{x,f[x]}
Bob Hanlon
---- Wonko the Sane <noone at nowhere.com> wrote:
> Hi all,
>
> I have a question that I have not been able to work out myself, and so
> put it to the group to help. I have a set of data points in a table (2
> columns {{x1,y1},{x2,y2},....,{xn,yn}}) I have performed a fit to the
> data and have a function f[x] which I would now like to evaluate at each
> data point (column 1 of the first table) to get a new table
> {{x1,f[x1]},{x2,f[x2]},....,{xn,f[xn]}}. Is there a way to do this? I
> hope my request is clear
>
> Best Regards
> Michael
>