* initializing diagonal matrix with some vector
2002-12-31 9:55 initializing diagonal matrix with some vector David Necas
@ 2002-05-01 13:54 ` David Necas
0 siblings, 0 replies; 4+ messages in thread
From: David Necas @ 2002-05-01 13:54 UTC (permalink / raw)
To: gsl-discuss
Hello,
I often need to initialize a diagonal matrix from
a vector. I think a function for such an
initialization could be generally useful, so
here's a patch, if you think so
Yeti
--- gsl-1.1.1.orig/matrix/gsl_matrix_char.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_char.h Sun Apr 28 02:35:55 2002
@@ -194,6 +194,7 @@
void gsl_matrix_char_set_zero (gsl_matrix_char * m);
void gsl_matrix_char_set_identity (gsl_matrix_char * m);
+void gsl_matrix_char_set_diagonal (gsl_matrix_char * m, gsl_vector_char * v);
void gsl_matrix_char_set_all (gsl_matrix_char * m, char x);
int gsl_matrix_char_fread (FILE * stream, gsl_matrix_char * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_complex_double.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_complex_double.h Sun Apr 28 02:36:12 2002
@@ -191,6 +191,7 @@
void gsl_matrix_complex_set_zero (gsl_matrix_complex * m);
void gsl_matrix_complex_set_identity (gsl_matrix_complex * m);
+void gsl_matrix_complex_set_diagonal (gsl_matrix_complex * m, gsl_vector_complex * v);
void gsl_matrix_complex_set_all (gsl_matrix_complex * m, gsl_complex x);
int gsl_matrix_complex_fread (FILE * stream, gsl_matrix_complex * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_complex_float.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_complex_float.h Sun Apr 28 02:39:52 2002
@@ -191,6 +191,7 @@
void gsl_matrix_complex_float_set_zero (gsl_matrix_complex_float * m);
void gsl_matrix_complex_float_set_identity (gsl_matrix_complex_float * m);
+void gsl_matrix_complex_float_set_diagonal (gsl_matrix_complex_float * m, gsl_vector_complex_float * v);
void gsl_matrix_complex_float_set_all (gsl_matrix_complex_float * m, gsl_complex_float x);
int gsl_matrix_complex_float_fread (FILE * stream, gsl_matrix_complex_float * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_complex_long_double.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_complex_long_double.h Sun Apr 28 02:39:27 2002
@@ -191,6 +191,7 @@
void gsl_matrix_complex_long_double_set_zero (gsl_matrix_complex_long_double * m);
void gsl_matrix_complex_long_double_set_identity (gsl_matrix_complex_long_double * m);
+void gsl_matrix_complex_long_double_set_diagonal (gsl_matrix_complex_long_double * m, gsl_vector_complex_long_double * v);
void gsl_matrix_complex_long_double_set_all (gsl_matrix_complex_long_double * m, gsl_complex_long_double x);
int gsl_matrix_complex_long_double_fread (FILE * stream, gsl_matrix_complex_long_double * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_double.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_double.h Sun Apr 28 02:37:05 2002
@@ -194,6 +194,7 @@
void gsl_matrix_set_zero (gsl_matrix * m);
void gsl_matrix_set_identity (gsl_matrix * m);
+void gsl_matrix_set_diagonal (gsl_matrix * m, gsl_vector * v);
void gsl_matrix_set_all (gsl_matrix * m, double x);
int gsl_matrix_fread (FILE * stream, gsl_matrix * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_float.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_float.h Sun Apr 28 02:37:13 2002
@@ -194,6 +194,7 @@
void gsl_matrix_float_set_zero (gsl_matrix_float * m);
void gsl_matrix_float_set_identity (gsl_matrix_float * m);
+void gsl_matrix_float_set_diagonal (gsl_matrix_float * m, gsl_vector_float * v);
void gsl_matrix_float_set_all (gsl_matrix_float * m, float x);
int gsl_matrix_float_fread (FILE * stream, gsl_matrix_float * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_int.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_int.h Sun Apr 28 02:37:18 2002
@@ -194,6 +194,7 @@
void gsl_matrix_int_set_zero (gsl_matrix_int * m);
void gsl_matrix_int_set_identity (gsl_matrix_int * m);
+void gsl_matrix_int_set_diagonal (gsl_matrix_int * m, gsl_vector_int * v);
void gsl_matrix_int_set_all (gsl_matrix_int * m, int x);
int gsl_matrix_int_fread (FILE * stream, gsl_matrix_int * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_long_double.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_long_double.h Sun Apr 28 02:40:14 2002
@@ -194,6 +194,7 @@
void gsl_matrix_long_double_set_zero (gsl_matrix_long_double * m);
void gsl_matrix_long_double_set_identity (gsl_matrix_long_double * m);
+void gsl_matrix_long_double_set_diagonal (gsl_matrix_long_double * m, gsl_vector_long_double * v);
void gsl_matrix_long_double_set_all (gsl_matrix_long_double * m, long double x);
int gsl_matrix_long_double_fread (FILE * stream, gsl_matrix_long_double * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_long.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_long.h Sun Apr 28 02:37:27 2002
@@ -194,6 +194,7 @@
void gsl_matrix_long_set_zero (gsl_matrix_long * m);
void gsl_matrix_long_set_identity (gsl_matrix_long * m);
+void gsl_matrix_long_set_diagonal (gsl_matrix_long * m, gsl_vector_long * v);
void gsl_matrix_long_set_all (gsl_matrix_long * m, long x);
int gsl_matrix_long_fread (FILE * stream, gsl_matrix_long * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_short.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_short.h Sun Apr 28 02:37:31 2002
@@ -194,6 +194,7 @@
void gsl_matrix_short_set_zero (gsl_matrix_short * m);
void gsl_matrix_short_set_identity (gsl_matrix_short * m);
+void gsl_matrix_short_set_diagonal (gsl_matrix_short * m, gsl_vector_short * v);
void gsl_matrix_short_set_all (gsl_matrix_short * m, short x);
int gsl_matrix_short_fread (FILE * stream, gsl_matrix_short * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_uchar.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_uchar.h Sun Apr 28 02:37:35 2002
@@ -194,6 +194,7 @@
void gsl_matrix_uchar_set_zero (gsl_matrix_uchar * m);
void gsl_matrix_uchar_set_identity (gsl_matrix_uchar * m);
+void gsl_matrix_uchar_set_diagonal (gsl_matrix_uchar * m, gsl_vector_uchar * v);
void gsl_matrix_uchar_set_all (gsl_matrix_uchar * m, unsigned char x);
int gsl_matrix_uchar_fread (FILE * stream, gsl_matrix_uchar * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_uint.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_uint.h Sun Apr 28 02:37:40 2002
@@ -194,6 +194,7 @@
void gsl_matrix_uint_set_zero (gsl_matrix_uint * m);
void gsl_matrix_uint_set_identity (gsl_matrix_uint * m);
+void gsl_matrix_uint_set_diagonal (gsl_matrix_uint * m, gsl_vector_uint * v);
void gsl_matrix_uint_set_all (gsl_matrix_uint * m, unsigned int x);
int gsl_matrix_uint_fread (FILE * stream, gsl_matrix_uint * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_ulong.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_ulong.h Sun Apr 28 02:37:46 2002
@@ -194,6 +194,7 @@
void gsl_matrix_ulong_set_zero (gsl_matrix_ulong * m);
void gsl_matrix_ulong_set_identity (gsl_matrix_ulong * m);
+void gsl_matrix_ulong_set_diagonal (gsl_matrix_ulong * m, gsl_vector_ulong * v);
void gsl_matrix_ulong_set_all (gsl_matrix_ulong * m, unsigned long x);
int gsl_matrix_ulong_fread (FILE * stream, gsl_matrix_ulong * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_ushort.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_ushort.h Sun Apr 28 02:37:55 2002
@@ -194,6 +194,7 @@
void gsl_matrix_ushort_set_zero (gsl_matrix_ushort * m);
void gsl_matrix_ushort_set_identity (gsl_matrix_ushort * m);
+void gsl_matrix_ushort_set_diagonal (gsl_matrix_ushort * m, gsl_vector_ushort * v);
void gsl_matrix_ushort_set_all (gsl_matrix_ushort * m, unsigned short x);
int gsl_matrix_ushort_fread (FILE * stream, gsl_matrix_ushort * m) ;
--- gsl-1.1.1.orig/matrix/init_source.c Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/init_source.c Sun Apr 28 02:31:02 2002
@@ -211,6 +211,25 @@
}
void
+FUNCTION (gsl_matrix, set_diagonal) (TYPE (gsl_matrix) * m, TYPE (gsl_vector) * v)
+{
+ size_t i, j;
+ ATOMIC * const data = m->data;
+ const size_t p = m->size1 ;
+ const size_t q = m->size2 ;
+ const size_t tda = m->tda ;
+
+ for (i = 0; i < p; i++)
+ {
+ for (j = 0; j < q; j++)
+ {
+ *(BASE *) (data + MULTIPLICITY * (i * tda + j))
+ = ((i == j) ? *(BASE *) (v->data + MULTIPLICITY * i * v->stride) : zero);
+ }
+ }
+}
+
+void
FUNCTION (gsl_matrix, set_zero) (TYPE (gsl_matrix) * m)
{
size_t i, j;
^ permalink raw reply [flat|nested] 4+ messages in thread
* initializing diagonal matrix with some vector
@ 2002-12-31 9:55 David Necas
2002-05-01 13:54 ` David Necas
0 siblings, 1 reply; 4+ messages in thread
From: David Necas @ 2002-12-31 9:55 UTC (permalink / raw)
To: gsl-discuss
Hello,
I often need to initialize a diagonal matrix from
a vector. I think a function for such an
initialization could be generally useful, so
here's a patch, if you think so
Yeti
--- gsl-1.1.1.orig/matrix/gsl_matrix_char.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_char.h Sun Apr 28 02:35:55 2002
@@ -194,6 +194,7 @@
void gsl_matrix_char_set_zero (gsl_matrix_char * m);
void gsl_matrix_char_set_identity (gsl_matrix_char * m);
+void gsl_matrix_char_set_diagonal (gsl_matrix_char * m, gsl_vector_char * v);
void gsl_matrix_char_set_all (gsl_matrix_char * m, char x);
int gsl_matrix_char_fread (FILE * stream, gsl_matrix_char * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_complex_double.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_complex_double.h Sun Apr 28 02:36:12 2002
@@ -191,6 +191,7 @@
void gsl_matrix_complex_set_zero (gsl_matrix_complex * m);
void gsl_matrix_complex_set_identity (gsl_matrix_complex * m);
+void gsl_matrix_complex_set_diagonal (gsl_matrix_complex * m, gsl_vector_complex * v);
void gsl_matrix_complex_set_all (gsl_matrix_complex * m, gsl_complex x);
int gsl_matrix_complex_fread (FILE * stream, gsl_matrix_complex * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_complex_float.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_complex_float.h Sun Apr 28 02:39:52 2002
@@ -191,6 +191,7 @@
void gsl_matrix_complex_float_set_zero (gsl_matrix_complex_float * m);
void gsl_matrix_complex_float_set_identity (gsl_matrix_complex_float * m);
+void gsl_matrix_complex_float_set_diagonal (gsl_matrix_complex_float * m, gsl_vector_complex_float * v);
void gsl_matrix_complex_float_set_all (gsl_matrix_complex_float * m, gsl_complex_float x);
int gsl_matrix_complex_float_fread (FILE * stream, gsl_matrix_complex_float * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_complex_long_double.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_complex_long_double.h Sun Apr 28 02:39:27 2002
@@ -191,6 +191,7 @@
void gsl_matrix_complex_long_double_set_zero (gsl_matrix_complex_long_double * m);
void gsl_matrix_complex_long_double_set_identity (gsl_matrix_complex_long_double * m);
+void gsl_matrix_complex_long_double_set_diagonal (gsl_matrix_complex_long_double * m, gsl_vector_complex_long_double * v);
void gsl_matrix_complex_long_double_set_all (gsl_matrix_complex_long_double * m, gsl_complex_long_double x);
int gsl_matrix_complex_long_double_fread (FILE * stream, gsl_matrix_complex_long_double * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_double.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_double.h Sun Apr 28 02:37:05 2002
@@ -194,6 +194,7 @@
void gsl_matrix_set_zero (gsl_matrix * m);
void gsl_matrix_set_identity (gsl_matrix * m);
+void gsl_matrix_set_diagonal (gsl_matrix * m, gsl_vector * v);
void gsl_matrix_set_all (gsl_matrix * m, double x);
int gsl_matrix_fread (FILE * stream, gsl_matrix * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_float.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_float.h Sun Apr 28 02:37:13 2002
@@ -194,6 +194,7 @@
void gsl_matrix_float_set_zero (gsl_matrix_float * m);
void gsl_matrix_float_set_identity (gsl_matrix_float * m);
+void gsl_matrix_float_set_diagonal (gsl_matrix_float * m, gsl_vector_float * v);
void gsl_matrix_float_set_all (gsl_matrix_float * m, float x);
int gsl_matrix_float_fread (FILE * stream, gsl_matrix_float * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_int.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_int.h Sun Apr 28 02:37:18 2002
@@ -194,6 +194,7 @@
void gsl_matrix_int_set_zero (gsl_matrix_int * m);
void gsl_matrix_int_set_identity (gsl_matrix_int * m);
+void gsl_matrix_int_set_diagonal (gsl_matrix_int * m, gsl_vector_int * v);
void gsl_matrix_int_set_all (gsl_matrix_int * m, int x);
int gsl_matrix_int_fread (FILE * stream, gsl_matrix_int * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_long_double.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_long_double.h Sun Apr 28 02:40:14 2002
@@ -194,6 +194,7 @@
void gsl_matrix_long_double_set_zero (gsl_matrix_long_double * m);
void gsl_matrix_long_double_set_identity (gsl_matrix_long_double * m);
+void gsl_matrix_long_double_set_diagonal (gsl_matrix_long_double * m, gsl_vector_long_double * v);
void gsl_matrix_long_double_set_all (gsl_matrix_long_double * m, long double x);
int gsl_matrix_long_double_fread (FILE * stream, gsl_matrix_long_double * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_long.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_long.h Sun Apr 28 02:37:27 2002
@@ -194,6 +194,7 @@
void gsl_matrix_long_set_zero (gsl_matrix_long * m);
void gsl_matrix_long_set_identity (gsl_matrix_long * m);
+void gsl_matrix_long_set_diagonal (gsl_matrix_long * m, gsl_vector_long * v);
void gsl_matrix_long_set_all (gsl_matrix_long * m, long x);
int gsl_matrix_long_fread (FILE * stream, gsl_matrix_long * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_short.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_short.h Sun Apr 28 02:37:31 2002
@@ -194,6 +194,7 @@
void gsl_matrix_short_set_zero (gsl_matrix_short * m);
void gsl_matrix_short_set_identity (gsl_matrix_short * m);
+void gsl_matrix_short_set_diagonal (gsl_matrix_short * m, gsl_vector_short * v);
void gsl_matrix_short_set_all (gsl_matrix_short * m, short x);
int gsl_matrix_short_fread (FILE * stream, gsl_matrix_short * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_uchar.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_uchar.h Sun Apr 28 02:37:35 2002
@@ -194,6 +194,7 @@
void gsl_matrix_uchar_set_zero (gsl_matrix_uchar * m);
void gsl_matrix_uchar_set_identity (gsl_matrix_uchar * m);
+void gsl_matrix_uchar_set_diagonal (gsl_matrix_uchar * m, gsl_vector_uchar * v);
void gsl_matrix_uchar_set_all (gsl_matrix_uchar * m, unsigned char x);
int gsl_matrix_uchar_fread (FILE * stream, gsl_matrix_uchar * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_uint.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_uint.h Sun Apr 28 02:37:40 2002
@@ -194,6 +194,7 @@
void gsl_matrix_uint_set_zero (gsl_matrix_uint * m);
void gsl_matrix_uint_set_identity (gsl_matrix_uint * m);
+void gsl_matrix_uint_set_diagonal (gsl_matrix_uint * m, gsl_vector_uint * v);
void gsl_matrix_uint_set_all (gsl_matrix_uint * m, unsigned int x);
int gsl_matrix_uint_fread (FILE * stream, gsl_matrix_uint * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_ulong.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_ulong.h Sun Apr 28 02:37:46 2002
@@ -194,6 +194,7 @@
void gsl_matrix_ulong_set_zero (gsl_matrix_ulong * m);
void gsl_matrix_ulong_set_identity (gsl_matrix_ulong * m);
+void gsl_matrix_ulong_set_diagonal (gsl_matrix_ulong * m, gsl_vector_ulong * v);
void gsl_matrix_ulong_set_all (gsl_matrix_ulong * m, unsigned long x);
int gsl_matrix_ulong_fread (FILE * stream, gsl_matrix_ulong * m) ;
--- gsl-1.1.1.orig/matrix/gsl_matrix_ushort.h Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/gsl_matrix_ushort.h Sun Apr 28 02:37:55 2002
@@ -194,6 +194,7 @@
void gsl_matrix_ushort_set_zero (gsl_matrix_ushort * m);
void gsl_matrix_ushort_set_identity (gsl_matrix_ushort * m);
+void gsl_matrix_ushort_set_diagonal (gsl_matrix_ushort * m, gsl_vector_ushort * v);
void gsl_matrix_ushort_set_all (gsl_matrix_ushort * m, unsigned short x);
int gsl_matrix_ushort_fread (FILE * stream, gsl_matrix_ushort * m) ;
--- gsl-1.1.1.orig/matrix/init_source.c Wed May 1 15:42:07 2002
+++ gsl-1.1.1/matrix/init_source.c Sun Apr 28 02:31:02 2002
@@ -211,6 +211,25 @@
}
void
+FUNCTION (gsl_matrix, set_diagonal) (TYPE (gsl_matrix) * m, TYPE (gsl_vector) * v)
+{
+ size_t i, j;
+ ATOMIC * const data = m->data;
+ const size_t p = m->size1 ;
+ const size_t q = m->size2 ;
+ const size_t tda = m->tda ;
+
+ for (i = 0; i < p; i++)
+ {
+ for (j = 0; j < q; j++)
+ {
+ *(BASE *) (data + MULTIPLICITY * (i * tda + j))
+ = ((i == j) ? *(BASE *) (v->data + MULTIPLICITY * i * v->stride) : zero);
+ }
+ }
+}
+
+void
FUNCTION (gsl_matrix, set_zero) (TYPE (gsl_matrix) * m)
{
size_t i, j;
^ permalink raw reply [flat|nested] 4+ messages in thread
* initializing diagonal matrix with some vector
@ 2002-12-31 9:55 Edwin Robert Tisdale
2002-05-02 1:29 ` Edwin Robert Tisdale
0 siblings, 1 reply; 4+ messages in thread
From: Edwin Robert Tisdale @ 2002-12-31 9:55 UTC (permalink / raw)
To: gsl-discuss
David Necas wrote:
> I often need to initialize a diagonal matrix from a vector.
> I think that a function for such an initialization
> could be generally useful.
I believe that the GSL includes a function
gsl_vector_view gsl_matrix_diagonal(gsl_matrix* m);
which you can use to obtain a reference
to the diagonal elements of a matrix.
^ permalink raw reply [flat|nested] 4+ messages in thread
* initializing diagonal matrix with some vector
2002-12-31 9:55 Edwin Robert Tisdale
@ 2002-05-02 1:29 ` Edwin Robert Tisdale
0 siblings, 0 replies; 4+ messages in thread
From: Edwin Robert Tisdale @ 2002-05-02 1:29 UTC (permalink / raw)
To: gsl-discuss
David Necas wrote:
> I often need to initialize a diagonal matrix from a vector.
> I think that a function for such an initialization
> could be generally useful.
I believe that the GSL includes a function
gsl_vector_view gsl_matrix_diagonal(gsl_matrix* m);
which you can use to obtain a reference
to the diagonal elements of a matrix.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2002-05-02 0:28 UTC | newest]
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2002-12-31 9:55 Edwin Robert Tisdale
2002-05-02 1:29 ` Edwin Robert Tisdale
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