#include <stdio.h>

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Classes
struct	matrix

struct	vector

Macros
#define	W_M_NONE (0x00U)

#define	W_M_TEXT (0x01U)

#define	W_M_BIN (0x02U)

#define	W_M_BIN_ROW (0x04U)

Typedefs
typedef struct matrix	matrix

typedef struct vector	vector

Enumerations
enum	mat_res_t { MAT_OK = 0, MAT_DIMENSION, MAT_NO_MEMORY, MAT_INPUT, MAT_GEN_ERROR }

Functions
mat_res_t	matrix_init (matrix *, unsigned, unsigned)

mat_res_t	vector_init (vector *, unsigned)

mat_res_t	matrix_destroy (matrix *)

mat_res_t	vector_destroy (vector *)

mat_res_t	matrix_null (matrix *)

mat_res_t	matrix_eye (matrix *, double)

mat_res_t	matrix_copy (matrix , matrix , double)

mat_res_t	vector_copy (vector , vector , double)

mat_res_t	vector_null (vector *)

mat_res_t	matrix_prod (matrix , matrix , matrix *, double)

mat_res_t	matrix_prod_sym (matrix , matrix , matrix *, double)

mat_res_t	matrix_prod_transpose (matrix , matrix , matrix *, double)

mat_res_t	matrix_transpose_prod (matrix , matrix , matrix *, double)

mat_res_t	matrix_vector_prod (matrix , vector , vector *)

mat_res_t	matrixT_vector_prod (matrix , vector , vector *)

mat_res_t	matrix_sum (matrix , matrix , matrix *, double)

mat_res_t	matrix_sum_transpose (matrix , matrix , matrix *, double)

mat_res_t	vector_sum (vector , vector , vector *, double)

mat_res_t	matrix_transpose (matrix , matrix )

mat_res_t	scalar_prod (vector , vector , double *)

mat_res_t	vector_vector_prod (vector , vector , matrix *, double)

mat_res_t	matrix_write (matrix , FILE , unsigned)

mat_res_t	vector_write (vector , FILE , unsigned)

mat_res_t	matrix_read (matrix , FILE , unsigned)

mat_res_t	vector_read (vector , FILE , unsigned)

mat_res_t	matrix_random (matrix *, double, double)

mat_res_t	vector_random (vector *, double, double)

mat_res_t	sub_matrix_extract (matrix , matrix , unsigned, unsigned)

mat_res_t	sub_matrix_insert (matrix , matrix , unsigned, unsigned)

double	mean_value (matrix *, int)

double	variance (matrix *, int)

double	maximum (matrix *, int)

double	minimum (matrix *, int)

double	matrix_trace (matrix *)

void	matrix_error (mat_res_t, const char *)

Macro Definition Documentation

#define W_M_BIN (0x02U)

Definition at line 48 of file matrix.h.

Referenced by ANN_DataRead(), ANN_DataWrite(), ANN_init(), ANN_write(), main(), matrix_write(), and vector_write().

#define W_M_BIN_ROW (0x04U)

Definition at line 49 of file matrix.h.

Referenced by vector_write().

#define W_M_NONE (0x00U)

Definition at line 46 of file matrix.h.

#define W_M_TEXT (0x01U)

Definition at line 47 of file matrix.h.

Referenced by ANN_write(), main(), matrix_write(), and vector_write().

Typedef Documentation

typedef struct matrix matrix

typedef struct vector vector

Enumeration Type Documentation

enum mat_res_t

Enumerator
MAT_OK
MAT_DIMENSION
MAT_NO_MEMORY
MAT_INPUT
MAT_GEN_ERROR

Definition at line 52 of file matrix.h.

              {
         MAT_OK = 0,
         MAT_DIMENSION,
         MAT_NO_MEMORY,
         MAT_INPUT,
         MAT_GEN_ERROR
 } mat_res_t;

Function Documentation

mat_res_t matrix_copy	(	matrix *	,
		matrix *	,
		double
	)

Definition at line 140 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_OK, matrix_error(), matrix::Ncolumn, and matrix::Nrow.

Referenced by main().

                                                              {
 
         unsigned i, j;
 
         /* controllo dimensionale */
         if( MAT1->Ncolumn != MAT2->Ncolumn || MAT1->Nrow != MAT2->Nrow){
                 matrix_error( MAT_DIMENSION, "matrix_copy" );
                 return MAT_DIMENSION;
         }
 
         for( i=0; i<MAT1->Nrow; i++ ){
                 for( j=0; j<MAT1->Ncolumn; j++ ){
                         MAT1->mat[i][j] = K*MAT2->mat[i][j];
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_destroy ( matrix * )

Definition at line 84 of file matrix.c.

References matrix::mat, MAT_OK, and matrix::Nrow.

Referenced by ANN_destroy(), and main().

                                         {
 
         unsigned i;
 
         for( i=0; i<MAT->Nrow; i++ ){
                 free(MAT->mat[i]);
         }
         free(MAT->mat);
 
         return MAT_OK;
 }

void matrix_error	(	mat_res_t	,
		const char *
	)

Definition at line 535 of file matrix.c.

References MAT_DIMENSION, MAT_GEN_ERROR, MAT_INPUT, and MAT_NO_MEMORY.

Referenced by matrix_copy(), matrix_eye(), matrix_init(), matrix_null(), matrix_prod(), matrix_prod_sym(), matrix_prod_transpose(), matrix_sum(), matrix_sum_transpose(), matrix_transpose(), matrix_transpose_prod(), matrix_vector_prod(), matrixT_vector_prod(), scalar_prod(), sub_matrix_extract(), sub_matrix_insert(), vector_copy(), vector_init(), vector_null(), vector_sum(), and vector_vector_prod().

                                                         {
 
         switch(error) {
         case MAT_NO_MEMORY:     fprintf( stderr, "Memory error( @ %s )\n", string );
                                 break;
         case MAT_DIMENSION:     fprintf( stderr, "Matrix dimension mismatch( @ %s )\n", string );
                                 break;
         case MAT_INPUT:         fprintf( stderr, "Reading error( @ %s )\n",string );
                                 break;
         case MAT_GEN_ERROR:     fprintf( stderr, "Error( @ %s )\n",string );
                                 break;
         default:                break;
         }
 }

mat_res_t matrix_eye	(	matrix *	,
		double
	)

Definition at line 122 of file matrix.c.

References matrix::mat, MAT_GEN_ERROR, MAT_OK, matrix_error(), matrix_null(), and matrix::Nrow.

                                              {
 
         unsigned i;
 
         /* azzero la matrice del risultato */
         if( matrix_null(MAT) != MAT_OK ){
                 matrix_error( MAT_GEN_ERROR, "matrix_eye" );
                 return MAT_GEN_ERROR;
         }
 
         for( i=0; i<MAT->Nrow; i++ ){
                 MAT->mat[i][i] = K;
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_init	(	matrix *	,
		unsigned	,
		unsigned
	)

Definition at line 43 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_NO_MEMORY, MAT_OK, matrix_error(), matrix::Ncolumn, and matrix::Nrow.

Referenced by ANN_DataRead(), ANN_init(), ANN_vector_matrix_init(), and main().

                                                                      {
 
         unsigned i;
 
         if( Nrow<= 0 || Ncolumn <= 0 ){
                 matrix_error( MAT_DIMENSION, "matrix_init" );
                 return MAT_DIMENSION;
         }
         
         MAT->Nrow = Nrow;
         MAT->Ncolumn = Ncolumn;
         if( !( MAT->mat = (double **)calloc( Nrow, sizeof(double *) ) ) ){
                 matrix_error( MAT_NO_MEMORY, "matrix_init" );
                 return MAT_NO_MEMORY;
         }
         for( i=0; i<Nrow; i++ ){
                 if( !( MAT->mat[i] = (double *)calloc( Ncolumn, sizeof(double) ) ) ){
                         matrix_error( MAT_NO_MEMORY, "matrix_init" );
                         return MAT_NO_MEMORY;
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_null ( matrix * )

Definition at line 107 of file matrix.c.

References matrix::mat, MAT_GEN_ERROR, MAT_OK, matrix_error(), matrix::Ncolumn, and matrix::Nrow.

Referenced by ANN_reset(), matrix_eye(), matrix_prod(), matrix_prod_sym(), matrix_prod_transpose(), and matrix_transpose_prod().

                                     {
 
         unsigned i;
 
         for( i=0; i<MAT->Nrow; i++ ){
                 if( !(memset( MAT->mat[i], 0, MAT->Ncolumn*sizeof(double) ) ) ){
                         matrix_error( MAT_GEN_ERROR, "matrix_null" );
                         return MAT_GEN_ERROR;
                 }              
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_prod	(	matrix *	,
		matrix *	,
		matrix *	,
		double
	)

Definition at line 187 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_GEN_ERROR, MAT_OK, matrix_error(), matrix_null(), matrix::Ncolumn, and matrix::Nrow.

                                                                             {
 
         unsigned i,j,k;
         
         /* controllo dimensionale */
         if( MAT1->Ncolumn != MAT2->Nrow || MAT_R->Nrow != MAT1->Nrow || MAT_R->Ncolumn != MAT2->Ncolumn  ){
                 matrix_error( MAT_DIMENSION, "matrix_prod" );
                 return MAT_DIMENSION;
         }
         /* azzero la matrice del risultato */
         if( matrix_null(MAT_R) != MAT_OK ){
                 matrix_error( MAT_GEN_ERROR, "matrix_prod" );
                 return MAT_GEN_ERROR;
         }
         for( i=0; i<MAT1->Nrow; i++ ){
                 for( j=0; j<MAT2->Ncolumn; j++ ){
                         for( k=0; k<MAT1->Ncolumn; k++ ){
                                 MAT_R->mat[i][j] += K*MAT1->mat[i][k]*MAT2->mat[k][j];
                         }
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_prod_sym	(	matrix *	,
		matrix *	,
		matrix *	,
		double
	)

Definition at line 212 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_GEN_ERROR, MAT_OK, matrix_error(), matrix_null(), matrix::Ncolumn, and matrix::Nrow.

                                                                                 {
 
         unsigned i,j,k;
         
         /* controllo dimensionale */
         if( MAT1->Ncolumn != MAT2->Nrow || MAT_R->Nrow != MAT1->Nrow || MAT_R->Ncolumn != MAT2->Ncolumn  ){
                 matrix_error( MAT_DIMENSION, "matrix_prod" );
                 return MAT_DIMENSION;
         }
         /* azzero la matrice del risultato */
         if( matrix_null(MAT_R) != MAT_OK ){
                 matrix_error( MAT_GEN_ERROR, "matrix_prod" );
                 return MAT_GEN_ERROR;
         }
         for( i=0; i<MAT1->Nrow; i++ ){
                 for( j=i; j<MAT2->Ncolumn; j++ ){
                         for( k=0; k<MAT1->Ncolumn; k++ ){
                                 MAT_R->mat[i][j] += K*MAT1->mat[i][k]*MAT2->mat[k][j];
                         }
                         MAT_R->mat[j][i] = MAT_R->mat[i][j];
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_prod_transpose	(	matrix *	,
		matrix *	,
		matrix *	,
		double
	)

Definition at line 284 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_GEN_ERROR, MAT_OK, matrix_error(), matrix_null(), matrix::Ncolumn, and matrix::Nrow.

                                                                                       {
 
         unsigned i,j,k;
         
         /* controllo dimensionale */
         if( MAT1->Ncolumn != MAT2->Ncolumn || MAT_R->Nrow != MAT1->Nrow || MAT_R->Ncolumn != MAT2->Nrow  ){
                 matrix_error( MAT_DIMENSION, "matrix_prod_transpose" );
                 return MAT_DIMENSION;
         }
         /* azzero la matrice del risultato */
         if( matrix_null(MAT_R) != MAT_OK ){
                 matrix_error( MAT_GEN_ERROR, "matrix_prod_transpose" );
                 return MAT_GEN_ERROR;
         }
         for( i=0; i<MAT1->Nrow; i++ ){
                 for( j=0; j<MAT2->Nrow; j++ ){
                         for( k=0; k<MAT1->Ncolumn; k++ ){
                                 MAT_R->mat[i][j] += K*MAT1->mat[i][k]*MAT2->mat[j][k];
                         }
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_random	(	matrix *	,
		double	,
		double
	)

Definition at line 552 of file matrix.c.

References matrix::mat, MAT_OK, matrix::Ncolumn, and matrix::Nrow.

Referenced by main().

                                                               {
 
         double y;
         unsigned i,j;
 
         for( i=0; i<MAT->Nrow; i++ ){
                 for( j=0; j<MAT->Ncolumn; j++ ){
                         y = rand();
                         y = y/RAND_MAX;
                         y = y*(max-min);
                         y += min ;
                         MAT->mat[i][j] = y;
                 }
         }
 
         return MAT_OK;
 }

mat_res_t matrix_read	(	matrix *	,
		FILE *	,
		unsigned
	)

Definition at line 506 of file matrix.c.

References matrix::mat, MAT_INPUT, MAT_OK, matrix::Ncolumn, and matrix::Nrow.

Referenced by ANN_DataRead(), and ANN_init().

                                                                {
 
         unsigned i,j;
 
         for( i=0; i<MAT->Nrow; i++ ){
                 for( j=0; j<MAT->Ncolumn; j++ ){
                         if( fscanf( fh, "%le", &MAT->mat[i][j] ) <= 0 ){
                                 return MAT_INPUT;
                         }
                 }
         }               
                 
         return MAT_OK;
 }

mat_res_t matrix_sum	(	matrix *	,
		matrix *	,
		matrix *	,
		double
	)

Definition at line 409 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_OK, matrix_error(), matrix::Ncolumn, and matrix::Nrow.

Referenced by ANN_TrainingEpoch(), and ANN_WeightUpdate().

                                                                            {
 
         unsigned i,j;
 
         /* controllo dimensionale */
         if( MAT1->Ncolumn != MAT2->Ncolumn || MAT_R->Ncolumn != MAT1->Ncolumn || MAT_R->Nrow != MAT2->Nrow || MAT1->Nrow != MAT2->Nrow ){
                 matrix_error( MAT_DIMENSION, "matrix_sum" );
                 return MAT_DIMENSION;
         }
         for( i=0; i<MAT1->Nrow; i++ ){
                 for( j=0; j<MAT1->Ncolumn; j++ ){
                         MAT_R->mat[i][j] = MAT1->mat[i][j] + K*MAT2->mat[i][j];
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_sum_transpose	(	matrix *	,
		matrix *	,
		matrix *	,
		double
	)

Definition at line 428 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_OK, matrix_error(), matrix::Ncolumn, and matrix::Nrow.

                                                                                      {
 
         unsigned i,j;
 
         /* controllo dimensionale */
         if( MAT1->Ncolumn != MAT2->Nrow || MAT_R->Ncolumn != MAT1->Ncolumn || MAT_R->Nrow != MAT1->Nrow || MAT1->Nrow != MAT2->Ncolumn ){
                 matrix_error( MAT_DIMENSION, "matrix_sum_transpose" );
                 return MAT_DIMENSION;
         }
         for( i=0; i<MAT1->Nrow; i++ ){
                 for( j=0; j<MAT1->Ncolumn; j++ ){
                         MAT_R->mat[i][j] = MAT1->mat[i][j] + K*MAT2->mat[j][i];
                 }
         }
 
         return MAT_OK;
 }

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double matrix_trace ( matrix * )

Definition at line 644 of file matrix.c.

References matrix::mat, and matrix::Nrow.

                                   {
 
         unsigned i;
         double trace;
 
         trace = 0.;
         for( i=0; i<MAT->Nrow; i++ ){
                 trace += MAT->mat[i][i];
         }
 
         return trace; 
 }

mat_res_t matrix_transpose	(	matrix *	,
		matrix *
	)

Definition at line 239 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_OK, matrix_error(), matrix::Ncolumn, and matrix::Nrow.

                                                        {
 
         unsigned i,j;
 
         /* controllo dimensionale */
         if( MAT1->Ncolumn != MAT2->Nrow || MAT1->Nrow != MAT2->Ncolumn ){
                 matrix_error( MAT_DIMENSION, "matrix_transpose" );
                 return MAT_DIMENSION;
         }
 
         for( i=0; i<MAT2->Nrow; i++ ){
                 for( j=0; j<MAT2->Ncolumn; j++ ){
                         MAT1->mat[j][i] = MAT2->mat[i][j];
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_transpose_prod	(	matrix *	,
		matrix *	,
		matrix *	,
		double
	)

Definition at line 258 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_GEN_ERROR, MAT_OK, matrix_error(), matrix_null(), matrix::Ncolumn, and matrix::Nrow.

                                                                                       {
 
         unsigned i,j,k;
         
         /* controllo dimensionale */
         if( MAT1->Nrow != MAT2->Nrow || MAT_R->Nrow != MAT1->Ncolumn || MAT_R->Ncolumn != MAT2->Ncolumn  ){
                 matrix_error( MAT_DIMENSION, "matrix_transpose_prod" );
                 return MAT_DIMENSION;
         }
         /* azzero la matrice del risultato */
         if( matrix_null(MAT_R) != MAT_OK ){
                 matrix_error( MAT_GEN_ERROR, "matrix_transpose_prod" );
                 return MAT_GEN_ERROR;
         }
         for( i=0; i<MAT1->Ncolumn; i++ ){
                 for( j=0; j<MAT2->Ncolumn; j++ ){
                         for( k=0; k<MAT1->Nrow; k++ ){
                                 MAT_R->mat[i][j] += K*MAT1->mat[k][i]*MAT2->mat[k][j];
                         }
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t matrix_vector_prod	(	matrix *	,
		vector *	,
		vector *
	)

Definition at line 354 of file matrix.c.

References vector::dimension, matrix::mat, MAT_DIMENSION, MAT_GEN_ERROR, MAT_OK, matrix_error(), matrix::Ncolumn, matrix::Nrow, vector::vec, and vector_null().

Referenced by ANN_dEdW().

                                                                       {
 
         unsigned i,j;
 
         /* controllodimensionale */
         if( MAT->Ncolumn != VEC->dimension || MAT->Nrow != VEC_R->dimension ){
                 matrix_error( MAT_DIMENSION, "matrix_vector_prod" );
                 return MAT_DIMENSION;
         }
         /* azzero il vettore risultato */
         if( vector_null(VEC_R) != MAT_OK ){
                 matrix_error( MAT_GEN_ERROR, "matrix_vector_prod");
                 return MAT_GEN_ERROR;
         }
 
         for( i=0; i<MAT->Nrow; i++ ){
                 for( j=0; j<MAT->Ncolumn; j++ ){
                         VEC_R->vec[i] += MAT->mat[i][j]*VEC->vec[j];
                 }
         }
         
         return MAT_OK;
 }

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mat_res_t matrix_write	(	matrix *	,
		FILE *	,
		unsigned
	)

Definition at line 467 of file matrix.c.

References matrix::mat, MAT_OK, matrix::Ncolumn, matrix::Nrow, W_M_BIN, and W_M_TEXT.

Referenced by ANN_DataWrite(), ANN_write(), and main().

                                                                {
 
         unsigned i,j;
 
         if( flags & W_M_TEXT )          fprintf( fh, "matrix = [\n" );
         if( flags & W_M_BIN )           fprintf( fh, "\n" );
         for( i=0; i<MAT->Nrow; i++ ){
                 for( j=0; j<MAT->Ncolumn; j++ ){
                         fprintf( fh, "%15.16e ", MAT->mat[i][j] );
                 }       
                 fprintf( fh, "\n");
         }
 
         if( flags & W_M_TEXT )          fprintf( fh, "]\n" );
         if( flags & W_M_BIN )           fprintf( fh, "\n" );
         
         return MAT_OK;
 }

mat_res_t matrixT_vector_prod	(	matrix *	,
		vector *	,
		vector *
	)

Definition at line 379 of file matrix.c.

References vector::dimension, matrix::mat, MAT_DIMENSION, MAT_GEN_ERROR, MAT_OK, matrix_error(), matrix::Ncolumn, matrix::Nrow, vector::vec, and vector_null().

Referenced by ANN_dEdW(), ANN_dXdW(), ANN_jacobian_matrix(), and ANN_sim().

                                                                        {
 
         unsigned i,j;
         
         /* controllo dimensionale */
         if( MAT->Nrow != VEC->dimension || MAT->Ncolumn != VEC_R->dimension ){
                 matrix_error( MAT_DIMENSION, "matrixT_vector_prod" );
                 return MAT_DIMENSION;
         }
         /* annullo il vettore risulatante */
         if( vector_null(VEC_R) != MAT_OK ){
                 matrix_error( MAT_GEN_ERROR, "matrixT_vector_prod" );
                 return MAT_GEN_ERROR;
         }
 
         //for( i=0; i<MAT->Nrow; i++ ){
         //      for( j=0; j<MAT->Ncolumn; j++ ){
         //              VEC_R->vec[j] += MAT->mat[i][j]*VEC->vec[i];
         //      }
         //}
         for( i=0; i<MAT->Ncolumn; i++ ){
                 for( j=0; j<MAT->Nrow; j++ ){
                         VEC_R->vec[i] += MAT->mat[j][i]*VEC->vec[j];
                 }
         }
         
         return MAT_OK;
 }

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double maximum	(	matrix *	,
		int
	)

Definition at line 612 of file matrix.c.

References matrix::mat, MAX, and matrix::Nrow.

Referenced by main().

                                          {
 
         unsigned i;
         double MAX;
         
         MAX = MAT->mat[0][column];
         for( i=0; i<MAT->Nrow; i++ ){
                 if( MAT->mat[i][column] > MAX ){
                         MAX = MAT->mat[i][column];
                 }
         }
 
         return MAX; 
 }

double mean_value	(	matrix *	,
		int
	)

Definition at line 586 of file matrix.c.

References matrix::mat, and matrix::Nrow.

Referenced by main(), and variance().

                                             {
 
         unsigned i;
         double mean = 0.;
 
         for( i=0; i<MAT->Nrow; i++ ){
                 mean += MAT->mat[i][column];
         }
         return( mean/MAT->Nrow );
 }

double minimum	(	matrix *	,
		int
	)

Definition at line 628 of file matrix.c.

References matrix::mat, MIN, and matrix::Nrow.

Referenced by main().

                                          {
 
         unsigned i;
         double MIN;
 
         MIN = MAT->mat[0][column];
         for( i=0; i<MAT->Nrow; i++ ){
                 if( MAT->mat[i][column] < MIN ){
                         MIN = MAT->mat[i][column];
                 }
         }
 
         return MIN; 
 }

mat_res_t scalar_prod	(	vector *	,
		vector *	,
		double *
	)

Definition at line 310 of file matrix.c.

References vector::dimension, MAT_DIMENSION, MAT_OK, matrix_error(), and vector::vec.

                                                                {
 
         unsigned i;
         double res;
         
         /* controllodimensionale */
         if( VEC1->dimension != VEC2->dimension ){
                 matrix_error( MAT_DIMENSION, "matrix_vector_prod" );
                 return MAT_DIMENSION;
         }
 
         res = 0.;
         for( i=0; i<VEC1->dimension; i++){
                 res += VEC1->vec[i]*VEC2->vec[i];
         }
 
         *RES = res;
 
         return MAT_OK;
 
 }

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mat_res_t sub_matrix_extract	(	matrix *	,
		matrix *	,
		unsigned	,
		unsigned
	)

Definition at line 656 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_OK, matrix_error(), matrix::Ncolumn, and matrix::Nrow.

                                                                                                 {
 
         unsigned i, j;
 
         if( (RowIndex+SUB->Nrow > BIG->Nrow) || (ColumnIndex+SUB->Ncolumn > BIG->Ncolumn) ){
                 matrix_error( MAT_DIMENSION, "sub_matrix_extract" );
                 return MAT_DIMENSION;
         }
 
         for( i=0; i<SUB->Nrow; i++){
                 for( j=0; j<SUB->Ncolumn; j++){
                         SUB->mat[i][j] = BIG->mat[RowIndex+i][ColumnIndex+j];
                 }
         }
 
         return MAT_OK;
 }

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mat_res_t sub_matrix_insert	(	matrix *	,
		matrix *	,
		unsigned	,
		unsigned
	)

Definition at line 674 of file matrix.c.

References matrix::mat, MAT_DIMENSION, MAT_OK, matrix_error(), matrix::Ncolumn, and matrix::Nrow.

                                                                                                {
 
         unsigned i, j;
 
         if( (RowIndex+SUB->Nrow > BIG->Nrow) || (ColumnIndex+SUB->Ncolumn > BIG->Ncolumn) ){
                 matrix_error( MAT_DIMENSION, "sub_matrix_insert" );
                 return MAT_DIMENSION;
         }
 
         for( i=0; i<SUB->Nrow; i++){
                 for( j=0; j<SUB->Ncolumn; j++){
                         BIG->mat[RowIndex+i][ColumnIndex+j] = SUB->mat[i][j];
                 }
         }
 
         return MAT_OK;
 
 }

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double variance	(	matrix *	,
		int
	)

Definition at line 598 of file matrix.c.

References matrix::mat, mean_value(), and matrix::Nrow.

Referenced by main().

                                           {
 
         unsigned i;
         double mean, var = 0.;
 
         mean = mean_value( MAT, column);
         for( i=0; i<MAT->Nrow; i++ ){
                 var += (MAT->mat[i][column]-mean)*(MAT->mat[i][column]-mean);
         }
 
         return( var/MAT->Nrow );
 }

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mat_res_t vector_copy	(	vector *	,
		vector *	,
		double
	)

Definition at line 159 of file matrix.c.

References vector::dimension, MAT_DIMENSION, MAT_OK, matrix_error(), and vector::vec.

                                                              {
 
         unsigned i;
 
         /* controllo dimensionale */
         if( VEC1->dimension != VEC2->dimension){
                 matrix_error( MAT_DIMENSION, "vector_copy" );
                 return MAT_DIMENSION;
         }
 
         for( i=0; i<VEC1->dimension; i++ ){
                         VEC1->vec[i] = K*VEC2->vec[i];
         }
 
         return MAT_OK;
 }

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mat_res_t vector_destroy ( vector * )

Definition at line 97 of file matrix.c.

References MAT_OK, and vector::vec.

Referenced by ANN_destroy(), and main().

                                         {
 
         free(VEC->vec);
 
         return MAT_OK;
 }

mat_res_t vector_init	(	vector *	,
		unsigned
	)

Definition at line 68 of file matrix.c.

References vector::dimension, MAT_DIMENSION, MAT_NO_MEMORY, MAT_OK, matrix_error(), and vector::vec.

Referenced by ANN_init(), ANN_vector_vector_init(), and main().

                                                         {
         if( dimension<= 0 ){
                 matrix_error( MAT_DIMENSION, "vector_init" );
                 return MAT_DIMENSION;
         }
         
         VEC->dimension = dimension;
 
         if( !( VEC->vec = (double *)calloc( dimension, sizeof(double) ) ) ){
                 matrix_error( MAT_NO_MEMORY, "vector_init");
                 return MAT_NO_MEMORY;
         }
 
         return MAT_OK;
 }

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mat_res_t vector_null ( vector * )

Definition at line 176 of file matrix.c.

References vector::dimension, MAT_GEN_ERROR, MAT_OK, matrix_error(), and vector::vec.

Referenced by ANN_jacobian_matrix(), ANN_reset(), matrix_vector_prod(), and matrixT_vector_prod().

                                     {
 
         if( !(memset( VEC->vec, 0, VEC->dimension*sizeof(double) ) ) ){
                 matrix_error( MAT_GEN_ERROR, "vector_null" );
                 return MAT_GEN_ERROR;
         }              
 
         return MAT_OK;
 }

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mat_res_t vector_random	(	vector *	,
		double	,
		double
	)

Definition at line 570 of file matrix.c.

References vector::dimension, MAT_OK, and vector::vec.

                                                               {
 
         double y;
         unsigned i;
 
         for( i=0; i<VEC->dimension; i++ ){
                 y = rand();
                 y = y/RAND_MAX;
                 y = y*(max-min);
                 y += min ;
                 VEC->vec[i] = y;
         }
         return MAT_OK;
 }

mat_res_t vector_read	(	vector *	,
		FILE *	,
		unsigned
	)

Definition at line 522 of file matrix.c.

References vector::dimension, MAT_INPUT, MAT_OK, and vector::vec.

                                                                {
 
         unsigned i;
 
         for( i=0; i<VEC->dimension; i++ ){
                 if( fscanf( fh, "%le", &VEC->vec[i] ) <= 0 ){
                         return MAT_INPUT;
                 }
         }               
                 
         return MAT_OK;
 }

mat_res_t vector_sum	(	vector *	,
		vector *	,
		vector *	,
		double
	)

Definition at line 447 of file matrix.c.

References vector::dimension, MAT_DIMENSION, MAT_OK, matrix_error(), and vector::vec.

                                                                            {
 
         unsigned i;
 
         /* controllo dimensionale */
         if( VEC1->dimension != VEC2->dimension || VEC_R->dimension != VEC1->dimension ){
                 matrix_error( MAT_DIMENSION, "vector_sum" );
                 return MAT_DIMENSION;
         }
         for( i=0; i<VEC1->dimension; i++ ){
                 VEC_R->vec[i] = VEC1->vec[i] + K*VEC2->vec[i];
         }
 
         return MAT_OK;
 }

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mat_res_t vector_vector_prod	(	vector *	,
		vector *	,
		matrix *	,
		double
	)

Definition at line 333 of file matrix.c.

References vector::dimension, matrix::mat, MAT_DIMENSION, MAT_OK, matrix_error(), matrix::Ncolumn, matrix::Nrow, and vector::vec.

                                                                                 {
 
         unsigned i, j;
         
         /* controllodimensionale */
         if( VEC1->dimension != RES->Nrow || VEC2->dimension != RES->Ncolumn){
                 matrix_error( MAT_DIMENSION, "vector_vector_prod" );
                 return MAT_DIMENSION;
         }
 
         for( i=0; i<VEC1->dimension; i++){
                 for( j=0; j<VEC2->dimension; j++){
                         RES->mat[i][j] = K*VEC1->vec[i]*VEC2->vec[j];
                 }
         }
 
         return MAT_OK;
 
 }

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mat_res_t vector_write	(	vector *	,
		FILE *	,
		unsigned
	)

Definition at line 487 of file matrix.c.

References vector::dimension, MAT_OK, vector::vec, W_M_BIN, W_M_BIN_ROW, and W_M_TEXT.

Referenced by main().

                                                                {
 
         unsigned i;
 
         if( flags & W_M_TEXT )          fprintf( fh, "vector = [\n" );
         /*if( flags & W_M_BIN )         fprintf( fh, "\n" );*/
         for( i=0; i<VEC->dimension; i++ ){
                 if( flags & W_M_BIN )           fprintf( fh, "\n" );
                 fprintf( fh, "%15.16e ", VEC->vec[i] );
         }
 
         if( flags & W_M_TEXT )          fprintf( fh, "]\n" );
         if( flags & W_M_BIN )           fprintf( fh, "\n" );
         if( flags & W_M_BIN_ROW )       fprintf( fh, "\n" );
         
         return MAT_OK;
 }

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