Youcef Rabah Rahal
wrote:
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Salam,
On Wednesday 03 March16 2004 :17, Baker Abdulhaq wrote:
OK, My first C++ program. please tell me the marks.
what next.
I have only used gsl. I did nothing important.
Sorry Baker, I did not have the chance to test your code yet. I need to
install GSL first. Apart from that, the files look fine to me (I suppose you
already tested them ?).
However, in Bayani, I want to keep the dependency tree as short as possible
(for the time being at least)... So the user is asked to install only QT 3
(which is usually already there by default).
So, for the time being, we have to code a performant existing fitting
algorithm, independently from any existing C/C++ library. And when it comes
to analytical solutions (linear fit), there's nothing to do except coding the
exact least squares _expression_ ;-)
http://mathworld.wolfram.com/LeastSquaresFitting.html [straight-forward...]
We need to do that first (we have to take into account the errors on the data
too...).
What do you think ? Can you do that ? (you'll only need to change the call to
gsl_fit_linear() with a new one).
I
have no problem in coding it. But I suppose that we need not only linear
regression to implement. We need to make multifit, may be non-linear
regrisions and interpolation also. It will be good to have GSL to buld a
serious mathematical program. The advantages of using GSL may be
that, we use a code that other people are testing, impruving and
optimizing.
However, I have fun coding. I will code it may self.
Salam,
- --
Youcef R. Rahal
Arabeyes.org
http://www.arabeyes.org/~rahal
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