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For this particular example, Carlos algorithm spits out in < hart beat ! Thanks again Carlos, it will surely help revamp some/many of the GenfitMinimize. Shina
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Rank: Administration Groups: Registered, Advanced Member Joined: 23/06/2009(UTC) Posts: 1,740 Was thanked: 318 time(s) in 268 post(s)
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Originally Posted by: shinavn For this particular example, Carlos algorithm spits out in < hart beat ! Thanks again Carlos, it will surely help revamp some/many of the GenfitMinimize. Shina
Could you be more specific please. What example are you talking about? Regards, Radovan |
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Originally Posted by: shinavn For this particular example, Carlos algorithm spits out in Please, share your application. LM covers a good % of all fits in Mathcad. Cases LM fails, Conjugate Gradient is the sole rescue. Many model functions can only be fitted by hand. Cheers ... Jean
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For this particular example, Carlos algorithm spits out in < hart beat ! Thanks again Carlos, it will surely help revamp some/many of the GenfitMinimize. Shina................... You are right About LM, however not so simple. al_nleqsolve, LM, ConjugateGradient that produce in Smath, all dependent upon initials and reflexivity of the model +++ the approach technique. Data reduction is a great approach technique [Kirby, Thermocouples ...] In Mathcad LM as well as CG, a technique that works well to initialize wrt many models is to pass manually initials through 2 points. That was not explored with Carlos LM. That technique through 2 points did work well in some Smath fit, but failed in other fits. Maybe you are working hard on that stuff ? Attached for the interest of this visit. Genfit Chemist.sm (35kb) downloaded 29 time(s). Genfit Minimize Rational KHL.sm (46kb) downloaded 22 time(s). Genfit Pharmacokinetics.sm (42kb) downloaded 22 time(s).
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