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libs/Math/LMFit/CHANGELOG

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+Customized by CDC:
+
+- support user Jacobian evaluation
+
+Changes in lmfit-4.0, released 16jul13
+
+- binary library renamed: lmmin -> lmfit
+- API changes:
+  - lmcurve.h no longer depends on lmmin.h, but only on new lmstruct.h
+  - low-level API lmdif is removed (code integrated in lmmin)
+  - lmcurve_fit -> lmcurve
+  - new control parameter 'pivot' (default: pivoting is used, as before)
+  - new structure lm_princon_struct, generalizing printflags
+  - in consequence thereof, new parameter lists for lmcurve and lmmin
+- code cleanup:
+  - ensure strict C90 compliance: no C++ comments; replace non-standard
+    struct assignment (reported by Elio Mazzocca, using LCC)
+  - revert malloc trick of release 3.4 (readability is more important)
+  - source code comment blocks moved around, to reduce duplications
+- build scripts cleanup:
+  - demo programs are no longer installed to $bindir
+  - configure.ac: cleaned up, and inserted comments
+- documentation:
+  - new web location: apps.jcns.fz-juelich.de/lmfit
+  - new entry page (dokuwiki) instead of man page
+  - man page split and largely rewritten: lmcurve(3), lmmin(3)
+
+Changes in lmfit-3.5, released 3feb13
+
+- changed overall license to FreeBSD to facilitate inclusion in Linux
+  distributions (request by M. Hroncok)
+- directory doc renamed man
+
+Changes in lmfit-3.4, released 21jan13
+
+- only one malloc call to allocate all arrays (proposal by F. Polchow)
+- liblmmin_la_LDFLAGS += -lm (required by Ubuntu, report by J. M. Agosta)
+- there is now an alternative ruby binding, using inline instead of swig
+  (contribution by I. Drozdov)
+- long message for degenerate case now suggests increasing epsilon
+  (suggestion by Nghia Ho)
+
+Changes in lmfit-3.3, released 12sep12
+
+- moved "int" declarations to top of lm_printout_std() and lmmin()
+  (required by Visual Studio 2005: bug report M. Beek)
+- corrected typo 0.55 -> 0.5 (bug reports M. Kardas and D. Pescia)
+- man pages now produced by make; finally got rid of dmake
+- untabified code (hint by W. Pimenta)
+
+Changes in lmfit-3.2, released 28mar10 (preview 27mar10):
+
+- shared library is given correct version number (set in configure.ac)
+- man page lmfit(3) is copied by dmake to lmmin(3) and lmcurve_fit(3)
+
+Changes in lmfit-3.1, released 12mar10:
+
+- debian directory not part of tgz distribution
+- temporarily removed lmmin.3 (was symlink -> lmfit.3)
+
+Changes in lmfit-3.0, released 2mar10 (preview 27feb10):
+
+- for parameter close to zero, change step width for calculation of jabobian
+- outer iteration counter starting at zero (C style)
+- replace BUG by LMFIT_DEBUG_MESSAGES and .._MATRIX to allow control by -D
+- remove redundant calculation by exchanging workspaces and lm_lmpar output
+- eliminate unnecessary wa1 = -wa1 computation
+- avoid passing wa3 to wa1, choose better names for work arrays in lm_par
+- migrate documentation from brain-damaged asciidoc to pod
+- rewrote interface documentation
+- API changes:
+  -- eliminate lm_initialize_control, provide defaults for float and double
+  -- separate limits and status records
+  -- separate generic minimization and one-dimensional curve fitting
+  -- simplify the latter
+- replace curve-fitting demo
+- provide surface-fitting demo (correspondence M. Rudolphi)
+- provide vector minimization demos
+- test for fnorm<=LM_DWARF, renumbered info values 0, 10, 11
+
+Changes in lmfit-2.6, released 29sep09:
+
+- nfev incrementation even if printout=0 (bug report C. Tanner)
+- correct t->tvec, y->yvec in man page  (bug report C. Tanner)
+
+Changes in lmfit-2.5, released 20sep09:
+
+- malloc==NULL ? (suggestion R. Strickland)
+- allow printout=NULL (suggestion J. Lodewyck)
+- improve infmsg (correspondence B. McHoull)
+- eliminate some static variables (p25, p5, p75, ..)
+- eliminate function data types; they obscure more than they help
+
+Changes in lmfit-2.4, released 27jul08:
+
+- clearer file headers
+- clearer licence (everything has ever been in the public domain)
+- machine-dependent arithmetic constants from float.h (suggestion M. Bydder)
+- minor improvements of comments
+
+Changes in lmfit-2.3, released 5apr08:
+
+- fixed bug sf#1817631: replaced confusing variable names in lmmin.c:lm_qrsolv()
+- accepted feature request 1814970: inclusion protection in headers
+- accepted feature request 1814976: cplusplus wrapper in headers
+- fixed bug sf#1868399: typos in debug messages
+- accepted proposal from M. Bydder:
+     improved calculation of differences in lmmin, lines 415-417
+- reverted comments in lmmin.c to pure C style
+- improved documentation of interfaces
+
+Changes up to lmfit-2.2, released 20sep07:
+
+- no change log has been maintained,
+  there are just the sourceforge release notes

libs/Math/LMFit/COPYING

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+The package lmfit is distributed under the FreeBSD License:
+
+--
+  Copyright (c) 1980-1999 University of Chicago,
+                          as operator of Argonne National Laboratory
+  Copyright (c) 2004-2013 Joachim Wuttke, Forschungszentrum Juelich GmbH
+
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+  - Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+  - Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+
+  This software is provided by the copyright holders and contributors "as is"
+  and any express or implied warranties, including, but not limited to, the
+  implied warranties of merchantability and fitness for a particular purpose
+  are disclaimed. In no event shall the copyright holder or contributors
+  be liable for any direct, indirect, incidental, special, exemplary, or
+  consequential damages (including, but not limited to, procurement of
+  substitute goods or services; loss of use, data, or profits; or business
+  interruption) however caused and on any theory of liability, whether in
+  contract, strict liability, or tort (including negligence or otherwise)
+  arising in any way out of the use of this software, even if advised of the
+  possibility of such damage.
+--

libs/Math/LMFit/lmmin.h

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+/*
+ * Project:  LevenbergMarquardtLeastSquaresFitting
+ *
+ * File:     lmmin.h
+ */
+ 
+#ifndef LMMIN_H
+#define LMMIN_H
+
+
+/** Compact high-level interface. **/
+
+/* Collection of control (input) parameters. */
+typedef struct {
+    double ftol;      /* relative error desired in the sum of squares. */
+    double xtol;      /* relative error between last two approximations. */
+    double gtol;      /* orthogonality desired between fvec and its derivs. */
+    double epsilon;   /* step used to calculate the jacobian, or 0 for user provided jacobian. */
+    double stepbound; /* initial bound to steps in the outer loop. */
+    int maxcall;      /* maximum number of iterations. */
+    int scale_diag;   /* UNDOCUMENTED, TESTWISE automatic diag rescaling? */
+    #ifdef LMFIT_PRINTOUT
+    int printflags;   /* OR'ed to produce more noise */
+    #endif
+} lm_control_struct;
+
+/* Collection of status (output) parameters. */
+typedef struct {
+    double fnorm;     /* norm of the residue vector fvec. */
+    int nfev;         /* actual number of iterations. */
+    int info;         /* status (index for lm_infmsg and lm_shortmsg). */
+} lm_status_struct;
+
+/* Recommended control parameter settings. */
+extern const lm_control_struct lm_control_double;
+extern const lm_control_struct lm_control_float;
+
+#ifdef LMFIT_PRINTOUT
+/* Standard monitoring routine. */
+void lm_printout_std( int n_par, const double *par, int m_dat,
+                      const void *data, const double *fvec,
+                      int printflags, int iflag, int iter, int nfev );
+#endif
+
+/* Refined calculation of Eucledian norm, typically used in printout routine. */
+double lm_enorm( int, const double * );
+
+/* The actual minimization. */
+void lmmin( int n_par, double *par, int m_dat, const void *data, 
+            void (*evaluate) (const double *par, int m_dat, const void *data,
+                              double *fvec, double *fjac, int *info),
+            const lm_control_struct *control, lm_status_struct *status
+            #ifdef LMFIT_PRINTOUT
+            , void (*printout) (int n_par, const double *par, int m_dat,
+                                const void *data, const double *fvec,
+                                int printflags, int iflag, int iter, int nfev) = NULL
+            #endif
+          );
+
+
+/** Legacy low-level interface. **/
+
+/* Alternative to lm_minimize, allowing full control, and read-out
+   of auxiliary arrays. For usage, see implementation of lmmin. */
+void lm_lmdif( int m, int n, double *x, double *fvec, double ftol,
+               double xtol, double gtol, int maxfev, double epsfcn,
+               double *diag, int mode, double factor, int& info, int& nfev,
+               double *fjac, int *ipvt, double *qtf, double *wa1,
+               double *wa2, double *wa3, double *wa4,
+               void (*evaluate) (const double *par, int m_dat, const void *data,
+                                 double *fvec, double *fjac, int *info),
+               const void *data
+               #ifdef LMFIT_PRINTOUT
+               , void (*printout) (int n_par, const double *par, int m_dat,
+                                   const void *data, const double *fvec,
+                                   int printflags, int iflag, int iter, int nfev),
+               int printflags
+               #endif
+             );
+
+extern const char *lm_infmsg[];
+extern const char *lm_shortmsg[];
+
+
+#endif /* LMMIN_H */