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Re: Dynamic FindFit???????

  • To: mathgroup at smc.vnet.net
  • Subject: [mg91348] Re: Dynamic FindFit???????
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
  • Date: Sun, 17 Aug 2008 06:39:10 -0400 (EDT)
  • Organization: The Open University, Milton Keynes, UK
  • References: <g86855$hs6$1@smc.vnet.net>

..~ J u L i O ~.. ..~ L. A.~.. wrote:

> I'm Julio and I'm new with mathematica and I have a problem.  I want to
> create a Dynamic FindFit without using Manipulate, just using Dynamic,
> but I'm not sure if it is possible.  If you can help me it will be great.

I am not sure whether this is what you are looking for, but have you try 
to wrap FindFit[] within Dynamic[]?

In[1]:= data = Table[Prime[x], {x, 20}]

Out[1]= {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, \
59, 61, 67, 71}

In[2]:= Dynamic[FindFit[data, a Exp[-k t], {a, k}, t]]

Out[2]= {a->8.17859,k->-0.112575}

(* Note that upon evaluation of In[3], Out[2] automatically updates to 
the following *)

Out[2]= {a->72.2284,k->-0.0431004}

In[3]:= data = Table[Prime[x], {x, 20, 40}]

Out[3]= {71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, \
137, 139, 149, 151, 157, 163, 167, 173}

Regards,
-- Jean-Marc


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