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Miroslav Balda

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26 Feb 2009 Open and close a job The couple of functions frees user from a dull work on file handling. Author: Miroslav Balda data import, data export, measurement 98 0
26 Feb 2009 Multiple assignment The function arg2vars enables to assign more items to a list of variables Author: Miroslav Balda data handling, programming, general 121 2
11 Feb 2009 Screenshot LMFsolve.m: Levenberg-Marquardt-Fletcher algorithm for nonlinear least squares problems LMFsolve.m finds least-squares solution of an overdetermined system of nonlinear equations Author: Miroslav Balda fletcher, optimization, levenberg, nonlinear least squar..., marquardt, overdetermined 335 9
  • 4.0
4.0 | 7 ratings
02 Feb 2009 Screenshot fmfiles - Find missing files All files declared in an input list, which are not found, are displayed in an error message Author: Miroslav Balda general 101 0
27 Jan 2009 Screenshot LMFnlsq - Solution of nonlinear least squares Efficient and stable Levenberg-Marquard-Fletcher method for solving of nonlinear equations Author: Miroslav Balda optimization, levenberg, least squares, marquardt, fletcher 213 11
  • 4.11111
4.1 | 9 ratings
Comments and Ratings by Miroslav View all
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12 Oct 2009 LMFnlsq - Solution of nonlinear least squares Efficient and stable Levenberg-Marquard-Fletcher method for solving of nonlinear equations Author: Miroslav Balda

Read my answer dated 04 jun 2009. I'll answer you later by e-mail.
04 Jun 2009 LMFnlsq - Solution of nonlinear least squares Efficient and stable Levenberg-Marquard-Fletcher method for solving of nonlinear equations Author: Miroslav Balda

This part of the submission is intended for Comments and Ratings. More over, I pleased anybody to write me by e-mail on errors and improvements, see the section Other requirements. This is the reason why I'll not communicate here anymore.
28 Feb 2009 Multiple assignment The function arg2vars enables to assign more items to a list of variables Author: Miroslav Balda

I am sorry that I have not known that the function deal exist. I always learn something new. BTW, the last example may be simplified on the right hand side of assignment by arg2vars([]).
11 Feb 2009 LMFsolve.m: Levenberg-Marquardt-Fletcher algorithm for nonlinear least squares problems LMFsolve.m finds least-squares solution of an overdetermined system of nonlinear equations Author: Miroslav Balda

To Judith. What is wrong with your computer is difficult to find from your message. If you used the script LMFsolvetest, which is a part of the zipped file, you would get the solution. The stability has been reached in this case by a careful selection of optional parameters. It is written in the description, that the code is not perfectly stable and that it is better to use the function LMFnlsq (See the comment dated 06 Dec 2007).
If you try the old version (LMFsolveOLD), you would get also the answer. The solution of the problems could be solved much easier, if you read the last sentence in the section "Other requirements".

13 Jan 2009 inp.m The function inp.m serves for keyboard input supported by default value Author: Miroslav Balda

Your solution is much simpler than that of mine, however, an operator doesn't know in advance, what he (she) is accepting as default.
Comments and Ratings on Miroslav's Files View all
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12 Oct 2009 LMFnlsq - Solution of nonlinear least squares Efficient and stable Levenberg-Marquard-Fletcher method for solving of nonlinear equations Author: Miroslav Balda Balda, Miroslav

Read my answer dated 04 jun 2009. I'll answer you later by e-mail.
11 Oct 2009 Frequency, amplitude, phase and mean value of sine wave The function sinfapm evaluates parameters of sampled sine wave Author: Miroslav Balda juho

When I implement this function for noisy sine vawes, the amplitudes seem to be very far from reality. Often, amplitudes have even minus signs(?). Any ideas why ?
01 Oct 2009 LMFnlsq - Solution of nonlinear least squares Efficient and stable Levenberg-Marquard-Fletcher method for solving of nonlinear equations Author: Miroslav Balda Uehara, Shin-ichi

Hi,

I want to do curve fitting of some laboratory results with a model.
The model which I want to use can not explained by a single function,
but is explained by a series of differential equations.
In this case, I do not know how to apply LMFnlsq.
It is very helpful if you give any advice.

Thanks.

(I am applying "fminsearch" to this problem so far, but
the description of "fminsearch" mentions that this code is
not suitable to this kind of problems.)
15 Aug 2009 LMFnlsq - Solution of nonlinear least squares Efficient and stable Levenberg-Marquard-Fletcher method for solving of nonlinear equations Author: Miroslav Balda Doan, Jon

Very nice
11 Jun 2009 LMFnlsq - Solution of nonlinear least squares Efficient and stable Levenberg-Marquard-Fletcher method for solving of nonlinear equations Author: Miroslav Balda thomas

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Files Tagged by Miroslav View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
26 Feb 2009 Open and close a job The couple of functions frees user from a dull work on file handling. Author: Miroslav Balda data import, data export, measurement 98 0
26 Feb 2009 Multiple assignment The function arg2vars enables to assign more items to a list of variables Author: Miroslav Balda data handling, programming, general 121 2
11 Feb 2009 Screenshot LMFsolve.m: Levenberg-Marquardt-Fletcher algorithm for nonlinear least squares problems LMFsolve.m finds least-squares solution of an overdetermined system of nonlinear equations Author: Miroslav Balda fletcher, optimization, levenberg, nonlinear least squar..., marquardt, overdetermined 335 9
  • 4.0
4.0 | 7 ratings
02 Feb 2009 Screenshot fmfiles - Find missing files All files declared in an input list, which are not found, are displayed in an error message Author: Miroslav Balda general 101 0
27 Jan 2009 Screenshot LMFnlsq - Solution of nonlinear least squares Efficient and stable Levenberg-Marquard-Fletcher method for solving of nonlinear equations Author: Miroslav Balda optimization, levenberg, least squares, marquardt, fletcher 213 11
  • 4.11111
4.1 | 9 ratings
 

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