[R] Solve system of equations (nleqslv) only returns origin
Berend Hasselman
bhh at xs4all.nl
Tue Dec 4 18:59:52 CET 2012
On 04-12-2012, at 18:50, Berend Hasselman wrote:
>
>
> You should return the vector y i.e. function values.
> But y has length 4 and x has length 4.
>
x has length 5 of course.
Berend
> So where is the fifth value for y?
>
>> }
>>
>> Xstart=c(10000, 200, 0.5, 0.5, 12)
>> fstart= firstordercond(Xstart)
>>
>
> If you print fstart you will see that it is identical to Xstart.
>
> You need to rethink you firstordercond() function.
> It's not correct.
>
> Berend
>
>> nleqslv(Xstart, firstordercond)
>>
>>
>>
>> --
>> Alicia Ellis
>> Postdoc
>> Gund Institute for Ecological Economics
>> University of Vermont
>> 617 Main Street
>> Burlington, VT 05405
>> (802) 656-1046
>> http://www.uvm.edu/~aellis5/
>> <http://entomology.ucdavis.edu/faculty/scott/aellis/>
>>
>> [[alternative HTML version deleted]]
>>
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>
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> and provide commented, minimal, self-contained, reproducible code.
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