Re: Using NMinimize on a vector
- To: mathgroup at smc.vnet.net
- Subject: [mg108183] Re: Using NMinimize on a vector
- From: cool-RR <cool-rr at cool-rr.com>
- Date: Wed, 10 Mar 2010 01:43:28 -0500 (EST)
- References: <hn5aok$6gt$1@smc.vnet.net> <4B96598F.4010303@metrohm.com>
Thanks, it's working.
Ram.
On Tue, Mar 9, 2010 at 4:22 PM, dh <dh at metrohm.com> wrote:
> Hi Ram,
> you want to minimize a scalar function of a vector argument.
> I hope you are aware of the pitfalls of local and global minimas.
> Let us call this function fun.
> We now create a vector with variables with the requeste length, that can be
> used inside NMinimize. Here is an example:
>
> x0 = {1, 2};
> fun[x_] := Norm[x0 - x]
> x = Table[Unique[x], {Length[x0]}];
> NMinimize[fun[x], x]
>
>
> On 09.03.2010 12:17, cool-RR wrote:
>
>> Hello,
>>
>> I want to run this: `NMinimize[Distances[x, seq, z], x]` But x should
>> be a vector whose dimensions will only be known at run time. How can I
>> do this? I know I could put vectors into NMinimize, but how to do it
>> when the dimension isn't known until runtime?
>>
>> Thanks,
>> Ram.
>>
>>
>
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>
> Daniel Huber
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--
Sincerely,
Ram Rachum