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-rw-r--r--doc/mtx_eig-help.pd35
-rw-r--r--src/mtx_eig.c227
-rw-r--r--src/mtx_svd.c9
3 files changed, 267 insertions, 4 deletions
diff --git a/doc/mtx_eig-help.pd b/doc/mtx_eig-help.pd
new file mode 100644
index 0000000..35ac0cc
--- /dev/null
+++ b/doc/mtx_eig-help.pd
@@ -0,0 +1,35 @@
+#N canvas 0 0 710 531 10;
+#X obj 82 93 mtx_eig;
+#X obj 82 66 mtx_rand;
+#X obj 82 146 print l_re;
+#X obj 128 124 print l_im;
+#X msg 82 38 3;
+#X obj 221 61 mtx_rand;
+#X msg 221 33 3;
+#X obj 230 119 mtx_eig v;
+#X obj 230 192 print l_re;
+#X obj 250 171 print l_im;
+#X obj 314 193 mtx_print Q_re;
+#X obj 335 171 mtx_print Q_im;
+#X obj 230 98 t a a;
+#X obj 375 123 mtx_print A;
+#X msg 350 56 matrix 2 2 1 1 -1 2;
+#X text 61 -33 [mtx_eig] computes (complex valued) eigenvalues \, and
+if desired eigenvectors of a matrix.;
+#X text 425 21 requires GSL;
+#X text 212 276 Franz Zotter \, 2009;
+#X text 98 238 Attention: eigenvectors seem to be wrong. Don't know
+why!;
+#X connect 0 0 2 0;
+#X connect 0 1 3 0;
+#X connect 1 0 0 0;
+#X connect 4 0 1 0;
+#X connect 5 0 12 0;
+#X connect 6 0 5 0;
+#X connect 7 0 8 0;
+#X connect 7 1 9 0;
+#X connect 7 2 10 0;
+#X connect 7 3 11 0;
+#X connect 12 0 7 0;
+#X connect 12 1 13 0;
+#X connect 14 0 12 0;
diff --git a/src/mtx_eig.c b/src/mtx_eig.c
new file mode 100644
index 0000000..04dc068
--- /dev/null
+++ b/src/mtx_eig.c
@@ -0,0 +1,227 @@
+/*
+ * iemmatrix
+ *
+ * objects for manipulating simple matrices
+ * mostly refering to matlab/octave matrix functions
+ * this functions depends on the GNU scientific library
+ *
+ * Copyright (c) 2009, Franz Zotter
+ * IEM, Graz, Austria
+ *
+ * For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ * WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+ *
+ */
+
+#include "iemmatrix.h"
+#include <stdlib.h>
+
+#ifdef HAVE_LIBGSL
+#include <gsl/gsl_eigen.h>
+#endif
+
+static t_class *mtx_eig_class;
+enum WithEigenVectors {WITHEVS=1, WITHOUTEVS=0};
+typedef struct _MTXEig_ MTXEig;
+struct _MTXEig_
+{
+ t_object x_obj;
+#ifdef HAVE_LIBGSL
+ gsl_matrix *a;
+ gsl_matrix_complex *q;
+ gsl_vector_complex *l;
+ gsl_eigen_nonsymm_workspace *w;
+ gsl_eigen_nonsymmv_workspace *wv;
+#endif
+ t_outlet *list_q_out_re;
+ t_outlet *list_q_out_im;
+ t_outlet *list_l_out_re;
+ t_outlet *list_l_out_im;
+ t_atom *list_q_re;
+ t_atom *list_q_im;
+ t_atom *list_l_re;
+ t_atom *list_l_im;
+ int size;
+ enum WithEigenVectors withevs;
+};
+
+#ifdef HAVE_LIBGSL
+static void allocMTXqlw (MTXEig *x)
+{
+ x->a=(gsl_matrix*)gsl_matrix_alloc(x->size,x->size);
+ x->l=(gsl_vector_complex*)gsl_vector_complex_alloc(x->size);
+
+ switch (x->withevs) {
+ case WITHEVS:
+ x->wv=(gsl_eigen_nonsymmv_workspace*)gsl_eigen_nonsymmv_alloc(x->size);
+ x->q=(gsl_matrix_complex*)gsl_matrix_complex_alloc(x->size,x->size);
+ break;
+ case WITHOUTEVS:
+ x->w=(gsl_eigen_nonsymm_workspace*)gsl_eigen_nonsymm_alloc(x->size);
+ }
+
+ x->list_q_re=(t_atom*)calloc(sizeof(t_atom),x->size*x->size+2);
+ x->list_q_im=(t_atom*)calloc(sizeof(t_atom),x->size*x->size+2);
+ x->list_l_re=(t_atom*)calloc(sizeof(t_atom),x->size);
+ x->list_l_im=(t_atom*)calloc(sizeof(t_atom),x->size);
+}
+
+static void deleteMTXqlw (MTXEig *x)
+{
+ if (x->list_q_re!=0)
+ free(x->list_q_re);
+ if (x->list_q_im!=0)
+ free(x->list_q_im);
+ if (x->list_l_re!=0)
+ free(x->list_l_re);
+ if (x->list_l_im!=0)
+ free(x->list_l_im);
+
+ x->list_q_re = 0;
+ x->list_q_im = 0;
+ x->list_l_re = 0;
+ x->list_l_im = 0;
+
+ if (x->a!=0)
+ gsl_matrix_free(x->a);
+ if (x->q!=0)
+ gsl_matrix_complex_free(x->q);
+ if (x->l!=0)
+ gsl_vector_complex_free(x->l);
+ if (x->w!=0)
+ gsl_eigen_nonsymm_free(x->w);
+ if (x->wv!=0)
+ gsl_eigen_nonsymmv_free(x->wv);
+
+ x->a = 0;
+ x->q = 0;
+ x->l = 0;
+ x->w = 0;
+ x->wv = 0;
+}
+#endif
+
+static void deleteMTXEig (MTXEig *x)
+{
+#ifdef HAVE_LIBGSL
+ deleteMTXqlw(x);
+#endif
+}
+
+static void *newMTXEig (t_symbol *s, int argc, t_atom *argv)
+{
+ MTXEig *x = (MTXEig *) pd_new (mtx_eig_class);
+
+ x->list_l_out_re = outlet_new (&x->x_obj, gensym("list"));
+ x->list_l_out_im = outlet_new (&x->x_obj, gensym("list"));
+ if (atom_getsymbol(argv)==gensym("v")) {
+ x->withevs=1;
+ x->list_q_out_re = outlet_new (&x->x_obj, gensym("matrix"));
+ x->list_q_out_im = outlet_new (&x->x_obj, gensym("matrix"));
+ }
+
+ x->list_l_re = 0;
+ x->list_l_im = 0;
+ x->list_q_re = 0;
+ x->list_q_im = 0;
+#ifdef HAVE_LIBGSL
+ x->a=0;
+ x->q=0;
+ x->l=0;
+ x->w=0;
+ x->wv=0;
+#endif
+
+ return ((void *) x);
+}
+
+static void mTXEigBang (MTXEig *x)
+{
+ if (x->list_l_re) {
+ switch (x->withevs) {
+ case WITHEVS:
+ outlet_anything(x->list_q_out_im, gensym("matrix"), x->size*x->size+2, x->list_q_im);
+ outlet_anything(x->list_q_out_re, gensym("matrix"), x->size*x->size+2, x->list_q_re);
+ case WITHOUTEVS:
+ outlet_anything(x->list_l_out_im, gensym("list"), x->size, x->list_l_im);
+ outlet_anything(x->list_l_out_re, gensym("list"), x->size, x->list_l_re);
+ }
+ }
+}
+
+static void mTXEigMatrix (MTXEig *x, t_symbol *s,
+ int argc, t_atom *argv)
+{
+ int rows = atom_getint (argv++);
+ int columns = atom_getint (argv++);
+ int size = rows * columns;
+ int in_size = argc-2;
+ int n,m;
+ float f;
+
+#ifdef HAVE_LIBGSL
+ gsl_complex c;
+ /* size check */
+ if (!size)
+ post("mtx_eig: invalid dimensions");
+ else if (in_size<size)
+ post("mtx_eig: sparse matrix not yet supported: use \"mtx_check\"");
+ else if (rows!=columns)
+ post("mtx_eig: Eigendecomposition works for square matrices only!");
+ else {
+ size=rows;
+ x->size=size;
+
+ deleteMTXqlw(x);
+ allocMTXqlw(x);
+
+ for (n=0;n<in_size;n++)
+ x->a->data[n]=(double) atom_getfloat(argv++);
+
+ switch (x->withevs) {
+ case WITHOUTEVS:
+ gsl_eigen_nonsymm(x->a,x->l,x->w);
+ break;
+ case WITHEVS:
+ gsl_eigen_nonsymmv(x->a,x->l,x->q,x->wv);
+ SETFLOAT((x->list_q_re),(float) x->size);
+ SETFLOAT((x->list_q_im),(float) x->size);
+ SETFLOAT((x->list_q_re+1),(float) x->size);
+ SETFLOAT((x->list_q_im+1),(float) x->size);
+ for (n=0;n<in_size;n++) {
+ SETFLOAT((x->list_q_im+2+n), (float) x->q->data[2*n+1]);
+ SETFLOAT((x->list_q_re+2+n), (float) x->q->data[2*n]);
+ }
+ break;
+ }
+
+ for (n=0;n<x->size;n++) {
+ f=(float) GSL_VECTOR_IMAG(x->l, n);
+ SETFLOAT((x->list_l_im+n), f);
+ f=(float) GSL_VECTOR_REAL(x->l, n);
+ SETFLOAT((x->list_l_re+n), f);
+ }
+
+ mTXEigBang(x);
+ }
+#else
+ post("mtx_eig: implementation requires gsl");
+#endif
+
+}
+
+void mtx_eig_setup (void)
+{
+ mtx_eig_class = class_new
+ (gensym("mtx_eig"),
+ (t_newmethod) newMTXEig,
+ (t_method) deleteMTXEig,
+ sizeof (MTXEig),
+ CLASS_DEFAULT, A_GIMME, 0);
+ class_addbang (mtx_eig_class, (t_method) mTXEigBang);
+ class_addmethod (mtx_eig_class, (t_method) mTXEigMatrix, gensym("matrix"), A_GIMME,0);
+}
+
+void iemtx_eig_setup(void){
+ mtx_eig_setup();
+}
diff --git a/src/mtx_svd.c b/src/mtx_svd.c
index 8e784ad..c046a73 100644
--- a/src/mtx_svd.c
+++ b/src/mtx_svd.c
@@ -3,8 +3,9 @@
*
* objects for manipulating simple matrices
* mostly refering to matlab/octave matrix functions
+ * this functions depends on the GNU scientific library
*
- * Copyright (c) 2008, Franz Zotter
+ * Copyright (c) 2009, Franz Zotter
* IEM, Graz, Austria
*
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
@@ -149,16 +150,16 @@ static void mTXSvdMatrix (MTXSvd *x, t_symbol *s,
SETFLOAT((x->list_u),(float) x->rows);
SETFLOAT((x->list_u+1),(float) x->columns);
for (n=0;n<in_size;n++)
- SETFLOAT((x->list_u+2+n), x->u->data[n]);
+ SETFLOAT((x->list_u+2+n), (float) x->u->data[n]);
for (n=0;n<x->columns;n++)
- SETFLOAT((x->list_s+n), x->s->data[n]);
+ SETFLOAT((x->list_s+n),(float) x->s->data[n]);
SETFLOAT((x->list_v),(float) x->columns);
SETFLOAT((x->list_v+1),(float) x->columns);
in_size=x->columns*x->columns;
for (n=0;n<in_size;n++)
- SETFLOAT((x->list_v+n+2), x->v->data[n]);
+ SETFLOAT((x->list_v+n+2), (float) x->v->data[n]);
mTXSvdBang(x);
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-25 17:36:17 +0000