1 files changed, 106 insertions, 0 deletions
diff --git a/gsl-1.9/multifit/gsl_multifit.h b/gsl-1.9/multifit/gsl_multifit.h
new file mode 100644
index 0000000..e408b0d
--- /dev/null
+++ b/gsl-1.9/multifit/gsl_multifit.h
@@ -0,0 +1,106 @@
+/* multifit/gsl_multifit.h
+ * 
+ * Copyright (C) 2000 Brian Gough
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GSL_MULTIFIT_H__
+#define __GSL_MULTIFIT_H__
+
+#include <stdlib.h>
+#include <gsl/gsl_math.h>
+#include <gsl/gsl_vector.h>
+#include <gsl/gsl_matrix.h>
+
+#undef __BEGIN_DECLS
+#undef __END_DECLS
+#ifdef __cplusplus
+# define __BEGIN_DECLS extern "C" {
+# define __END_DECLS }
+#else
+# define __BEGIN_DECLS /* empty */
+# define __END_DECLS /* empty */
+#endif
+
+__BEGIN_DECLS
+
+typedef struct 
+{
+  size_t n; /* number of observations */
+  size_t p; /* number of parameters */
+  gsl_matrix * A;
+  gsl_matrix * Q;
+  gsl_matrix * QSI;
+  gsl_vector * S;
+  gsl_vector * t;
+  gsl_vector * xt;
+  gsl_vector * D;
+} 
+gsl_multifit_linear_workspace;
+
+gsl_multifit_linear_workspace *
+gsl_multifit_linear_alloc (size_t n, size_t p);
+
+void
+gsl_multifit_linear_free (gsl_multifit_linear_workspace * work);
+
+int
+gsl_multifit_linear (const gsl_matrix * X,
+                     const gsl_vector * y,
+                     gsl_vector * c,
+                     gsl_matrix * cov,
+                     double * chisq,
+                     gsl_multifit_linear_workspace * work);
+
+int
+gsl_multifit_linear_svd (const gsl_matrix * X,
+                         const gsl_vector * y,
+                         double tol,
+                         size_t * rank,
+                         gsl_vector * c,
+                         gsl_matrix * cov,
+                         double *chisq, 
+                         gsl_multifit_linear_workspace * work);
+
+int
+gsl_multifit_wlinear (const gsl_matrix * X,
+                      const gsl_vector * w,
+                      const gsl_vector * y,
+                      gsl_vector * c,
+                      gsl_matrix * cov,
+                      double * chisq,
+                      gsl_multifit_linear_workspace * work);
+
+int
+gsl_multifit_wlinear_svd (const gsl_matrix * X,
+                          const gsl_vector * w,
+                          const gsl_vector * y,
+                          double tol,
+                          size_t * rank,
+                          gsl_vector * c,
+                          gsl_matrix * cov,
+                          double *chisq, 
+                          gsl_multifit_linear_workspace * work);
+
+int
+gsl_multifit_linear_est (const gsl_vector * x,
+                         const gsl_vector * c,
+                         const gsl_matrix * cov, double *y, double *y_err);
+
+
+__END_DECLS
+
+#endif /* __GSL_MULTIFIT_H__ */