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SGVector< T > Class Template Reference

Detailed Description

template<class T>
class shogun::SGVector< T >

shogun vector

Definition at line 29 of file SGVector.h.

Inheritance diagram for SGVector< T >:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 SGVector ()
 SGVector (T *v, index_t len, bool ref_counting=true)
 SGVector (index_t len, bool ref_counting=true)
 SGVector (const SGVector &orig)
void set (SGVector< T > orig)
virtual ~SGVector ()
int32_t size () const
 operator T * ()
void zero ()
void set_const (T const_elem)
void range_fill (T start=0)
void random (T min_value, T max_value)
void randperm ()
index_t find_position_to_insert (T element)
void qsort ()
SGVector< index_targsort ()
bool is_sorted () const
SGVector< T > clone () const
SGVector< T > get ()
const T & get_element (index_t index)
void set_element (const T &p_element, index_t index)
void resize_vector (int32_t n)
const T & operator[] (uint64_t index) const
const T & operator[] (int64_t index) const
const T & operator[] (uint32_t index) const
const T & operator[] (int32_t index) const
T & operator[] (uint64_t index)
T & operator[] (int64_t index)
T & operator[] (uint32_t index)
T & operator[] (int32_t index)
void add (const SGVector< T > x)
void add (const SGSparseVector< T > &x)
void add (const T x)
SGVector< T > operator+ (SGVector< T > x)
SGVector< T > operator+= (SGVector< T > x)
SGVector< T > operator+= (SGSparseVector< T > &x)
bool equals (SGVector< T > &other)
void permute ()
void permute (CRandom *rand)
product ()
 return product(vec)
void display_size () const
void display_vector (const char *name="vector", const char *prefix="") const
SGVector< index_tfind (T elem)
template<typename Predicate >
SGVector< index_tfind_if (Predicate p)
void scale (T alpha)
 scale vector inplace
float64_t mean () const
void load (CFile *loader)
void save (CFile *saver)
void abs ()
 absolute value of vector elements
void acos ()
 arc cosine of vector elements
void asin ()
 arc sine of vector elements
void atan ()
 arc tangent of vector elements
void atan2 (T x)
 atan2 of vector elements
void cos ()
 cosine of vector elements
void cosh ()
 hyperbolic cosine of vector elements
void exp ()
 exponential of vector elements
void log ()
 natural logarithm of vector elements
void log10 ()
 common logarithm of vector elements
void pow (T q)
 power of vector elements
void sin ()
 sine of vector elements
void sinh ()
 hyperbolic sine of vector elements
void sqrt ()
 square root of vector elements
void tan ()
 tangent of vector elements
void tanh ()
 hyperbolic tangent of vector elements
SGVector< float64_tget_real ()
SGVector< float64_tget_imag ()
template<>
void zero ()
template<>
SGVector< index_targsort ()
template<>
bool is_sorted () const
template<>
index_t find_position_to_insert (complex128_t element)
template<>
void range_fill_vector (complex128_t *vec, int32_t len, complex128_t start)
template<>
void display_vector (const bool *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const char *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const uint8_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const int8_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const uint16_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const int16_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const int32_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const uint32_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const int64_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const uint64_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const float32_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const float64_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const floatmax_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void display_vector (const complex128_t *vector, int32_t n, const char *name, const char *prefix)
template<>
void vec1_plus_scalar_times_vec2 (float64_t *vec1, float64_t scalar, const float64_t *vec2, int32_t n)
template<>
void vec1_plus_scalar_times_vec2 (float32_t *vec1, float32_t scalar, const float32_t *vec2, int32_t n)
template<>
void random_vector (complex128_t *vec, int32_t len, complex128_t min_value, complex128_t max_value)
template<>
SGVector< complex128_trandperm_vec (int32_t n)
template<>
complex128_trandperm (int32_t n)
template<>
void randperm (complex128_t *perm, int32_t n)
template<>
bool twonorm (const bool *x, int32_t len)
template<>
char twonorm (const char *x, int32_t len)
template<>
int8_t twonorm (const int8_t *x, int32_t len)
template<>
uint8_t twonorm (const uint8_t *x, int32_t len)
template<>
int16_t twonorm (const int16_t *x, int32_t len)
template<>
uint16_t twonorm (const uint16_t *x, int32_t len)
template<>
int32_t twonorm (const int32_t *x, int32_t len)
template<>
uint32_t twonorm (const uint32_t *x, int32_t len)
template<>
int64_t twonorm (const int64_t *x, int32_t len)
template<>
uint64_t twonorm (const uint64_t *x, int32_t len)
template<>
float32_t twonorm (const float32_t *x, int32_t len)
template<>
float64_t twonorm (const float64_t *v, int32_t n)
template<>
floatmax_t twonorm (const floatmax_t *x, int32_t len)
template<>
complex128_t twonorm (const complex128_t *x, int32_t len)
template<>
complex128_t qsq (complex128_t *x, int32_t len, float64_t q)
template<>
complex128_t qnorm (complex128_t *x, int32_t len, float64_t q)
template<>
float64_t max_abs (float64_t *vec, int32_t len)
template<>
float32_t max_abs (float32_t *vec, int32_t len)
template<>
complex128_t max_abs (complex128_t *vec, int32_t len)
template<>
int32_t arg_max_abs (float64_t *vec, int32_t inc, int32_t len, float64_t *maxv_ptr)
template<>
int32_t arg_max_abs (float32_t *vec, int32_t inc, int32_t len, float32_t *maxv_ptr)
template<>
int32_t arg_max_abs (complex128_t *vec, int32_t inc, int32_t len, complex128_t *maxv_ptr)
template<>
int32_t arg_max (complex128_t *vec, int32_t inc, int32_t len, complex128_t *maxv_ptr)
template<>
int32_t arg_min (complex128_t *vec, int32_t inc, int32_t len, complex128_t *minv_ptr)
template<>
float64_t sum_abs (float64_t *vec, int32_t len)
template<>
float32_t sum_abs (float32_t *vec, int32_t len)
template<>
int32_t unique (complex128_t *output, int32_t size)
template<>
void scale_vector (float64_t alpha, float64_t *vec, int32_t len)
template<>
void scale_vector (float32_t alpha, float32_t *vec, int32_t len)
template<>
float64_t mean () const
template<>
void load (CFile *loader)
template<>
void save (CFile *saver)
template<>
float64_tlinspace (complex128_t start, complex128_t end, int32_t n)
template<>
void pow (complex128_t q)
int32_t ref_count ()

Static Public Member Functions

static SGVector< T > randperm_vec (int32_t n)
static T * randperm (int32_t n)
static SGVector< float64_tlinspace_vec (T start, T end, int32_t n)
static float64_tlinspace (T start, T end, int32_t n)
static T * clone_vector (const T *vec, int32_t len)
static void fill_vector (T *vec, int32_t len, T value)
static void range_fill_vector (T *vec, int32_t len, T start=0)
static void random_vector (T *vec, int32_t len, T min_value, T max_value)
static void randperm (T *perm, int32_t n)
static void permute (T *vec, int32_t n)
static void permute (T *vec, int32_t n, CRandom *rand)
static void permute_vector (SGVector< T > vec)
static T twonorm (const T *x, int32_t len)
 || x ||_2
static float64_t onenorm (T *x, int32_t len)
 || x ||_1
static T qsq (T *x, int32_t len, float64_t q)
 || x ||_q^q
static T qnorm (T *x, int32_t len, float64_t q)
 || x ||_q
static void vec1_plus_scalar_times_vec2 (T *vec1, const T scalar, const T *vec2, int32_t n)
 x=x+alpha*y
static float64_t dot (const bool *v1, const bool *v2, int32_t n)
 compute dot product between v1 and v2 (blas optimized)
static floatmax_t dot (const floatmax_t *v1, const floatmax_t *v2, int32_t n)
 compute dot product between v1 and v2 (blas optimized)
static float64_t dot (const float64_t *v1, const float64_t *v2, int32_t n)
 compute dot product between v1 and v2 (blas optimized)
static float32_t dot (const float32_t *v1, const float32_t *v2, int32_t n)
 compute dot product between v1 and v2 (blas optimized)
static float64_t dot (const uint64_t *v1, const uint64_t *v2, int32_t n)
 compute dot product between v1 and v2 (for 64bit unsigned ints)
static float64_t dot (const int64_t *v1, const int64_t *v2, int32_t n)
 compute dot product between v1 and v2 (for 64bit ints)
static float64_t dot (const int32_t *v1, const int32_t *v2, int32_t n)
 compute dot product between v1 and v2 (for 32bit ints)
static float64_t dot (const uint32_t *v1, const uint32_t *v2, int32_t n)
 compute dot product between v1 and v2 (for 32bit unsigned ints)
static float64_t dot (const uint16_t *v1, const uint16_t *v2, int32_t n)
 compute dot product between v1 and v2 (for 16bit unsigned ints)
static float64_t dot (const int16_t *v1, const int16_t *v2, int32_t n)
 compute dot product between v1 and v2 (for 16bit unsigned ints)
static float64_t dot (const char *v1, const char *v2, int32_t n)
 compute dot product between v1 and v2 (for 8bit (un)signed ints)
static float64_t dot (const uint8_t *v1, const uint8_t *v2, int32_t n)
 compute dot product between v1 and v2 (for 8bit (un)signed ints)
static float64_t dot (const int8_t *v1, const int8_t *v2, int32_t n)
 compute dot product between v1 and v2 (for 8bit (un)signed ints)
static float64_t dot (const float64_t *v1, const char *v2, int32_t n)
 compute dot product between v1 and v2
static void vector_multiply (T *target, const T *v1, const T *v2, int32_t len)
 compute vector multiplication
static void add (T *target, T alpha, const T *v1, T beta, const T *v2, int32_t len)
 target=alpha*vec1 + beta*vec2
static void add_scalar (T alpha, T *vec, int32_t len)
 add scalar to vector inplace
static void scale_vector (T alpha, T *vec, int32_t len)
 scale vector inplace
static T sum (T *vec, int32_t len)
 return sum(vec)
static T sum (SGVector< T > vec)
 return sum(vec)
static T product (T *vec, int32_t len)
 return the product of the vectors elements
static T min (T *vec, int32_t len)
static T max_abs (T *vec, int32_t len)
static T max (T *vec, int32_t len)
static int32_t arg_max (T *vec, int32_t inc, int32_t len, T *maxv_ptr=NULL)
 return arg_max(vec)
static int32_t arg_max_abs (T *vec, int32_t inc, int32_t len, T *maxv_ptr=NULL)
 return arg_max_abs(vec)
static int32_t arg_min (T *vec, int32_t inc, int32_t len, T *minv_ptr=NULL)
 return arg_min(vec)
static T sum_abs (T *vec, int32_t len)
 return sum(abs(vec))
static bool fequal (T x, T y, float64_t precision=1e-6)
 return sum(abs(vec))
static int32_t unique (T *output, int32_t size)
static void display_vector (const T *vector, int32_t n, const char *name="vector", const char *prefix="")
 display vector (useful for debugging)
static void display_vector (const SGVector< T >, const char *name="vector", const char *prefix="")
 display vector (useful for debugging)
static SGMatrix< T > convert_to_matrix (SGVector< T > vector, index_t nrows, index_t ncols, bool fortran_order)
static void convert_to_matrix (T *&matrix, index_t nrows, index_t ncols, const T *vector, int32_t vlen, bool fortran_order)

Public Attributes

T * vector
index_t vlen

Protected Member Functions

virtual void copy_data (const SGReferencedData &orig)
virtual void init_data ()
virtual void free_data ()
void copy_refcount (const SGReferencedData &orig)
int32_t ref ()
int32_t unref ()

Constructor & Destructor Documentation

SGVector ( )

default constructor

Definition at line 73 of file SGVector.cpp.

SGVector ( T *  v,
index_t  len,
bool  ref_counting = true 
)

constructor for setting params

Definition at line 79 of file SGVector.cpp.

SGVector ( index_t  len,
bool  ref_counting = true 
)

constructor to create new vector in memory

Definition at line 85 of file SGVector.cpp.

SGVector ( const SGVector< T > &  orig)

copy constructor

Definition at line 92 of file SGVector.cpp.

~SGVector ( ) [virtual]

empty destructor

Definition at line 104 of file SGVector.cpp.


Member Function Documentation

void abs ( )

absolute value of vector elements

void acos ( )

arc cosine of vector elements

void add ( const SGVector< T >  x)

add vector to current vector

Parameters:
xadd vector x to current vector

Definition at line 329 of file SGVector.cpp.

void add ( const SGSparseVector< T > &  x)

add sparse vector to current vector

Parameters:
xadd sparse vector x to current vector

Definition at line 348 of file SGVector.cpp.

void add ( const T  x)

add scalar to current vector

Parameters:
xadd vector x to current vector

Definition at line 339 of file SGVector.cpp.

static void add ( T *  target,
alpha,
const T *  v1,
beta,
const T *  v2,
int32_t  len 
) [static]

target=alpha*vec1 + beta*vec2

Definition at line 487 of file SGVector.h.

static void add_scalar ( alpha,
T *  vec,
int32_t  len 
) [static]

add scalar to vector inplace

Definition at line 496 of file SGVector.h.

int32_t arg_max ( T *  vec,
int32_t  inc,
int32_t  len,
T *  maxv_ptr = NULL 
) [static]

return arg_max(vec)

Definition at line 1048 of file SGVector.cpp.

int32_t arg_max ( complex128_t vec,
int32_t  inc,
int32_t  len,
complex128_t maxv_ptr 
)

Definition at line 1068 of file SGVector.cpp.

int32_t arg_max_abs ( T *  vec,
int32_t  inc,
int32_t  len,
T *  maxv_ptr = NULL 
) [static]

return arg_max_abs(vec)

Definition at line 1019 of file SGVector.cpp.

int32_t arg_max_abs ( float64_t vec,
int32_t  inc,
int32_t  len,
float64_t maxv_ptr 
)

Definition at line 994 of file SGVector.cpp.

int32_t arg_max_abs ( float32_t vec,
int32_t  inc,
int32_t  len,
float32_t maxv_ptr 
)

Definition at line 1006 of file SGVector.cpp.

int32_t arg_max_abs ( complex128_t vec,
int32_t  inc,
int32_t  len,
complex128_t maxv_ptr 
)

Definition at line 1039 of file SGVector.cpp.

int32_t arg_min ( T *  vec,
int32_t  inc,
int32_t  len,
T *  minv_ptr = NULL 
) [static]

return arg_min(vec)

Definition at line 1079 of file SGVector.cpp.

int32_t arg_min ( complex128_t vec,
int32_t  inc,
int32_t  len,
complex128_t minv_ptr 
)

Definition at line 1099 of file SGVector.cpp.

get sorted index.

idx = v.argsort() is similar to Matlab [~, idx] = sort(v)

Returns:
sorted index for this vector

Definition at line 194 of file SGVector.cpp.

Definition at line 207 of file SGVector.cpp.

void asin ( )

arc sine of vector elements

void atan ( )

arc tangent of vector elements

void atan2 ( x)

atan2 of vector elements

Definition at line 1314 of file SGVector.cpp.

SGVector< T > clone ( ) const

clone vector

Definition at line 257 of file SGVector.cpp.

T * clone_vector ( const T *  vec,
int32_t  len 
) [static]

clone vector

Definition at line 263 of file SGVector.cpp.

SGMatrix< T > convert_to_matrix ( SGVector< T >  vector,
index_t  nrows,
index_t  ncols,
bool  fortran_order 
) [static]

create SGMatrix from linear vector

Parameters:
vectorsource vector
nrowsnumber of rows
ncolsnumber of cols
fortran_orderorder of stroing matrix in linear vector true - column-major order (FORTRAN, MATLAB, R) false - row-major order (C, Python)
Returns:
matrix

Definition at line 1376 of file SGVector.cpp.

void convert_to_matrix ( T *&  matrix,
index_t  nrows,
index_t  ncols,
const T *  vector,
int32_t  vlen,
bool  fortran_order 
) [static]

create matrix from linear vector

Parameters:
matrixdestination memory
nrowsnumber of rows
ncolsnumber of cols
vectorsource vector
vlenlenght of source vector
fortran_orderorder of stroing matrix in linear vector true - column-major order (FORTRAN, MATLAB, R) false - row-major order (C, Python)
Returns:
matrix

Definition at line 1390 of file SGVector.cpp.

void copy_data ( const SGReferencedData orig) [protected, virtual]

needs to be overridden to copy data

Implements SGReferencedData.

Definition at line 368 of file SGVector.cpp.

void copy_refcount ( const SGReferencedData orig) [protected, inherited]

copy refcount

Definition at line 58 of file SGReferencedData.cpp.

void cos ( )

cosine of vector elements

void cosh ( )

hyperbolic cosine of vector elements

void display_size ( ) const

display array size

Definition at line 362 of file SGVector.cpp.

void display_vector ( const bool *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 419 of file SGVector.cpp.

void display_vector ( const char *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 430 of file SGVector.cpp.

void display_vector ( const uint8_t *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 441 of file SGVector.cpp.

void display_vector ( const int8_t *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 452 of file SGVector.cpp.

void display_vector ( const uint16_t *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 463 of file SGVector.cpp.

void display_vector ( const int16_t *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 474 of file SGVector.cpp.

void display_vector ( const int32_t *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 485 of file SGVector.cpp.

void display_vector ( const uint32_t *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 496 of file SGVector.cpp.

void display_vector ( const int64_t *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 508 of file SGVector.cpp.

void display_vector ( const uint64_t *  vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 519 of file SGVector.cpp.

void display_vector ( const float32_t vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 530 of file SGVector.cpp.

void display_vector ( const float64_t vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 541 of file SGVector.cpp.

void display_vector ( const floatmax_t vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 552 of file SGVector.cpp.

void display_vector ( const complex128_t vector,
int32_t  n,
const char *  name,
const char *  prefix 
)

Definition at line 566 of file SGVector.cpp.

void display_vector ( const char *  name = "vector",
const char *  prefix = "" 
) const

display vector

Definition at line 405 of file SGVector.cpp.

static void display_vector ( const T *  vector,
int32_t  n,
const char *  name = "vector",
const char *  prefix = "" 
) [static]

display vector (useful for debugging)

void display_vector ( const SGVector< T >  vector,
const char *  name = "vector",
const char *  prefix = "" 
) [static]

display vector (useful for debugging)

Definition at line 412 of file SGVector.cpp.

static float64_t dot ( const bool *  v1,
const bool *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (blas optimized)

Definition at line 344 of file SGVector.h.

static floatmax_t dot ( const floatmax_t v1,
const floatmax_t v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (blas optimized)

Definition at line 353 of file SGVector.h.

float64_t dot ( const float64_t v1,
const float64_t v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (blas optimized)

Definition at line 614 of file SGVector.cpp.

float32_t dot ( const float32_t v1,
const float32_t v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (blas optimized)

Definition at line 632 of file SGVector.cpp.

static float64_t dot ( const uint64_t *  v1,
const uint64_t *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 64bit unsigned ints)

Definition at line 369 of file SGVector.h.

static float64_t dot ( const int64_t *  v1,
const int64_t *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 64bit ints)

Definition at line 379 of file SGVector.h.

static float64_t dot ( const int32_t *  v1,
const int32_t *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 32bit ints)

Definition at line 390 of file SGVector.h.

static float64_t dot ( const uint32_t *  v1,
const uint32_t *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 32bit unsigned ints)

Definition at line 401 of file SGVector.h.

static float64_t dot ( const uint16_t *  v1,
const uint16_t *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 16bit unsigned ints)

Definition at line 412 of file SGVector.h.

static float64_t dot ( const int16_t *  v1,
const int16_t *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 16bit unsigned ints)

Definition at line 423 of file SGVector.h.

static float64_t dot ( const char *  v1,
const char *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 8bit (un)signed ints)

Definition at line 434 of file SGVector.h.

static float64_t dot ( const uint8_t *  v1,
const uint8_t *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 8bit (un)signed ints)

Definition at line 445 of file SGVector.h.

static float64_t dot ( const int8_t *  v1,
const int8_t *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2 (for 8bit (un)signed ints)

Definition at line 456 of file SGVector.h.

static float64_t dot ( const float64_t v1,
const char *  v2,
int32_t  n 
) [static]

compute dot product between v1 and v2

Definition at line 467 of file SGVector.h.

bool equals ( SGVector< T > &  other)

equals method up to precision for vectors (element-wise)

Parameters:
othervector to compare with
Returns:
false if any element differs or if sizes are different, true otherwise

Definition at line 390 of file SGVector.cpp.

void exp ( )

exponential of vector elements

bool fequal ( x,
y,
float64_t  precision = 1e-6 
) [static]

return sum(abs(vec))

Definition at line 1138 of file SGVector.cpp.

void fill_vector ( T *  vec,
int32_t  len,
value 
) [static]

fill vector

Definition at line 271 of file SGVector.cpp.

SGVector< index_t > find ( elem)

find index for occurance of an element

Parameters:
elemthe element to find

Definition at line 1166 of file SGVector.cpp.

SGVector<index_t> find_if ( Predicate  p)

find index for elements where the predicate returns true

Parameters:
pthe predicate, it should accept the value of the element and return a bool

Definition at line 592 of file SGVector.h.

For a sorted (ascending) vector, gets the index after the first element that is smaller than the given one

Parameters:
elementelement to find index for
Returns:
index of the first element greater than given one

Definition at line 237 of file SGVector.cpp.

Definition at line 249 of file SGVector.cpp.

void free_data ( ) [protected, virtual]

needs to be overridden to free data

Implements SGReferencedData.

Definition at line 382 of file SGVector.cpp.

SGVector<T> get ( )

get the vector (no copying is done here)

Returns:
the refcount increased vector

Definition at line 169 of file SGVector.h.

const T & get_element ( index_t  index)

get vector element at index

Parameters:
indexindex
Returns:
vector element at index

Definition at line 293 of file SGVector.cpp.

imag part of a complex128_t vector

Definition at line 1367 of file SGVector.cpp.

real part of a complex128_t vector

Definition at line 1359 of file SGVector.cpp.

void init_data ( ) [protected, virtual]

needs to be overridden to initialize empty data

Implements SGReferencedData.

Definition at line 375 of file SGVector.cpp.

bool is_sorted ( ) const

check if vector is sorted

Returns:
true if vector is sorted, false otherwise

Definition at line 215 of file SGVector.cpp.

bool is_sorted ( ) const

Definition at line 230 of file SGVector.cpp.

float64_t * linspace ( start,
end,
int32_t  n 
) [static]

Returns an array with n linearly spaced elements between start and end.

Parameters:
startbeginning of the interval to divide
endupper bound of the interval to divide
nnumber of elements used to divide the interval
Returns:
array with linearly spaced elements within the interval

Definition at line 1336 of file SGVector.cpp.

float64_t * linspace ( complex128_t  start,
complex128_t  end,
int32_t  n 
)

Definition at line 1345 of file SGVector.cpp.

SGVector< float64_t > linspace_vec ( start,
end,
int32_t  n 
) [static]

Returns a vector with n linearly spaced elements between start and end.

Parameters:
startbeginning of the interval to divide
endupper bound of the interval to divide
nnumber of elements used to divide the interval
Returns:
vector with linearly spaced elements within the interval

Definition at line 1330 of file SGVector.cpp.

void load ( CFile loader)

load vector from file

Parameters:
loaderFile object via which to load data

Definition at line 1222 of file SGVector.cpp.

void load ( CFile loader)

Definition at line 1237 of file SGVector.cpp.

void log ( )

natural logarithm of vector elements

void log10 ( )

common logarithm of vector elements

T max ( T *  vec,
int32_t  len 
) [static]
Returns:
max(vec)

Definition at line 981 of file SGVector.cpp.

T max_abs ( T *  vec,
int32_t  len 
) [static]
Returns:
max(abs(vec))
max_abs(vec)

Definition at line 961 of file SGVector.cpp.

float64_t max_abs ( float64_t vec,
int32_t  len 
)

Definition at line 939 of file SGVector.cpp.

float32_t max_abs ( float32_t vec,
int32_t  len 
)

Definition at line 949 of file SGVector.cpp.

complex128_t max_abs ( complex128_t vec,
int32_t  len 
)

Definition at line 973 of file SGVector.cpp.

float64_t mean ( ) const

compute the mean value of the vector

Returns:
the mean value

Definition at line 1205 of file SGVector.cpp.

float64_t mean ( ) const

Definition at line 1216 of file SGVector.cpp.

T min ( T *  vec,
int32_t  len 
) [static]
Returns:
min(vec)

Definition at line 926 of file SGVector.cpp.

float64_t onenorm ( T *  x,
int32_t  len 
) [static]

|| x ||_1

Definition at line 882 of file SGVector.cpp.

operator T * ( )

cast to pointer

Definition at line 57 of file SGVector.h.

SGVector< T > operator+ ( SGVector< T >  x)

addition operator

Definition at line 318 of file SGVector.cpp.

SGVector<T> operator+= ( SGVector< T >  x)

inplace addition operator

Definition at line 298 of file SGVector.h.

SGVector<T> operator+= ( SGSparseVector< T > &  x)

inplace addition operator for sparse vector

Definition at line 305 of file SGVector.h.

const T& operator[] ( uint64_t  index) const

operator overload for vector read only access

Parameters:
indexdimension to access

Definition at line 201 of file SGVector.h.

const T& operator[] ( int64_t  index) const

operator overload for vector read only access

Parameters:
indexdimension to access

Definition at line 211 of file SGVector.h.

const T& operator[] ( uint32_t  index) const

operator overload for vector read only access

Parameters:
indexdimension to access

Definition at line 221 of file SGVector.h.

const T& operator[] ( int32_t  index) const

operator overload for vector read only access

Parameters:
indexdimension to access

Definition at line 231 of file SGVector.h.

T& operator[] ( uint64_t  index)

operator overload for vector r/w access

Parameters:
indexdimension to access

Definition at line 241 of file SGVector.h.

T& operator[] ( int64_t  index)

operator overload for vector r/w access

Parameters:
indexdimension to access

Definition at line 251 of file SGVector.h.

T& operator[] ( uint32_t  index)

operator overload for vector r/w access

Parameters:
indexdimension to access

Definition at line 261 of file SGVector.h.

T& operator[] ( int32_t  index)

operator overload for vector r/w access

Parameters:
indexdimension to access

Definition at line 271 of file SGVector.h.

void permute ( T *  vec,
int32_t  n 
) [static]

permute

Definition at line 710 of file SGVector.cpp.

void permute ( T *  vec,
int32_t  n,
CRandom rand 
) [static]

permute with given CRandom state

Definition at line 717 of file SGVector.cpp.

void permute ( )

create a random permutation in place

Definition at line 724 of file SGVector.cpp.

void permute ( CRandom rand)

create a random permutation with given CRandom state

Definition at line 730 of file SGVector.cpp.

void permute_vector ( SGVector< T >  vec) [static]

permute vector

Definition at line 736 of file SGVector.cpp.

void pow ( q)

power of vector elements

Definition at line 1323 of file SGVector.cpp.

void pow ( complex128_t  q)

Definition at line 1353 of file SGVector.cpp.

static T product ( T *  vec,
int32_t  len 
) [static]

return the product of the vectors elements

Definition at line 522 of file SGVector.h.

T product ( )

return product(vec)

Definition at line 532 of file SGVector.h.

T qnorm ( T *  x,
int32_t  len,
float64_t  q 
) [static]

|| x ||_q

Definition at line 911 of file SGVector.cpp.

complex128_t qnorm ( complex128_t x,
int32_t  len,
float64_t  q 
)

Definition at line 918 of file SGVector.cpp.

void qsort ( )

quicksort the vector it is sorted from in ascending (for type T)

Definition at line 169 of file SGVector.cpp.

T qsq ( T *  x,
int32_t  len,
float64_t  q 
) [static]

|| x ||_q^q

Definition at line 893 of file SGVector.cpp.

complex128_t qsq ( complex128_t x,
int32_t  len,
float64_t  q 
)

Definition at line 903 of file SGVector.cpp.

void random ( min_value,
max_value 
)

create random vector

Parameters:
min_value[min_value,max_value]
max_value

Definition at line 153 of file SGVector.cpp.

void random_vector ( T *  vec,
int32_t  len,
min_value,
max_value 
) [static]

random vector

Definition at line 650 of file SGVector.cpp.

void random_vector ( complex128_t vec,
int32_t  len,
complex128_t  min_value,
complex128_t  max_value 
)

Definition at line 657 of file SGVector.cpp.

void randperm ( )

Returns a random permutation of number from 0 to len-1

Definition at line 161 of file SGVector.cpp.

T * randperm ( int32_t  n) [static]

Returns a random permutation of number from 0 to n-1. Caller has to free memory.

Parameters:
nrange of permutation
Returns:
random permutation of number from 0 to n-1

Definition at line 678 of file SGVector.cpp.

void randperm ( T *  perm,
int32_t  n 
) [static]

random permatutaion

Definition at line 695 of file SGVector.cpp.

complex128_t * randperm ( int32_t  n)

Definition at line 687 of file SGVector.cpp.

void randperm ( complex128_t perm,
int32_t  n 
)

Definition at line 703 of file SGVector.cpp.

SGVector< T > randperm_vec ( int32_t  n) [static]

Returns a random permutation of number from 0 to n-1

Definition at line 664 of file SGVector.cpp.

SGVector< complex128_t > randperm_vec ( int32_t  n)

Definition at line 670 of file SGVector.cpp.

void range_fill ( start = 0)

range fill a vector with start...start+len-1

Parameters:
start- value to be assigned to first element of vector

Definition at line 145 of file SGVector.cpp.

void range_fill_vector ( T *  vec,
int32_t  len,
start = 0 
) [static]

range fill vector

Definition at line 278 of file SGVector.cpp.

void range_fill_vector ( complex128_t vec,
int32_t  len,
complex128_t  start 
)

Definition at line 285 of file SGVector.cpp.

int32_t ref ( ) [protected, inherited]

increase reference counter

Returns:
reference count

Definition at line 67 of file SGReferencedData.cpp.

int32_t ref_count ( ) [inherited]

display reference counter

Returns:
reference count

Definition at line 44 of file SGReferencedData.cpp.

void resize_vector ( int32_t  n)

resize vector

Parameters:
nnew size
Returns:
if resizing was successful

Definition at line 307 of file SGVector.cpp.

void save ( CFile saver)

save vector to file

Parameters:
saverFile object via which to save data

Definition at line 1242 of file SGVector.cpp.

void save ( CFile saver)

Definition at line 1252 of file SGVector.cpp.

void scale ( alpha)

scale vector inplace

Definition at line 1200 of file SGVector.cpp.

void scale_vector ( alpha,
T *  vec,
int32_t  len 
) [static]

scale vector inplace

Definition at line 1179 of file SGVector.cpp.

void scale_vector ( float64_t  alpha,
float64_t vec,
int32_t  len 
)

Definition at line 1187 of file SGVector.cpp.

void scale_vector ( float32_t  alpha,
float32_t vec,
int32_t  len 
)

Definition at line 1193 of file SGVector.cpp.

void set ( SGVector< T >  orig)

wrapper for the copy constructor useful for SWIG interfaces

Parameters:
origvector to set

Definition at line 98 of file SGVector.cpp.

void set_const ( const_elem)

set vector to a constant

Parameters:
const_elem- value to set vector to

Definition at line 124 of file SGVector.cpp.

void set_element ( const T &  p_element,
index_t  index 
)

set vector element at index 'index' return false in case of trouble

Parameters:
p_elementvector element to set
indexindex
Returns:
if setting was successful

Definition at line 300 of file SGVector.cpp.

void sin ( )

sine of vector elements

void sinh ( )

hyperbolic sine of vector elements

int32_t size ( ) const

size

Definition at line 54 of file SGVector.h.

void sqrt ( )

square root of vector elements

static T sum ( T *  vec,
int32_t  len 
) [static]

return sum(vec)

Definition at line 506 of file SGVector.h.

static T sum ( SGVector< T >  vec) [static]

return sum(vec)

Definition at line 516 of file SGVector.h.

T sum_abs ( T *  vec,
int32_t  len 
) [static]

return sum(abs(vec))

Definition at line 1109 of file SGVector.cpp.

float64_t sum_abs ( float64_t vec,
int32_t  len 
)

Definition at line 1120 of file SGVector.cpp.

float32_t sum_abs ( float32_t vec,
int32_t  len 
)

Definition at line 1128 of file SGVector.cpp.

void tan ( )

tangent of vector elements

void tanh ( )

hyperbolic tangent of vector elements

static T twonorm ( const T *  x,
int32_t  len 
) [static]

|| x ||_2

bool twonorm ( const bool *  x,
int32_t  len 
)

Definition at line 746 of file SGVector.cpp.

char twonorm ( const char *  x,
int32_t  len 
)

Definition at line 753 of file SGVector.cpp.

int8_t twonorm ( const int8_t *  x,
int32_t  len 
)

Definition at line 760 of file SGVector.cpp.

uint8_t twonorm ( const uint8_t *  x,
int32_t  len 
)

Definition at line 770 of file SGVector.cpp.

int16_t twonorm ( const int16_t *  x,
int32_t  len 
)

Definition at line 780 of file SGVector.cpp.

uint16_t twonorm ( const uint16_t *  x,
int32_t  len 
)

Definition at line 790 of file SGVector.cpp.

int32_t twonorm ( const int32_t *  x,
int32_t  len 
)

Definition at line 800 of file SGVector.cpp.

uint32_t twonorm ( const uint32_t *  x,
int32_t  len 
)

Definition at line 810 of file SGVector.cpp.

int64_t twonorm ( const int64_t *  x,
int32_t  len 
)

Definition at line 820 of file SGVector.cpp.

uint64_t twonorm ( const uint64_t *  x,
int32_t  len 
)

Definition at line 830 of file SGVector.cpp.

float32_t twonorm ( const float32_t x,
int32_t  len 
)

Definition at line 840 of file SGVector.cpp.

float64_t twonorm ( const float64_t v,
int32_t  n 
)

Definition at line 850 of file SGVector.cpp.

floatmax_t twonorm ( const floatmax_t x,
int32_t  len 
)

Definition at line 862 of file SGVector.cpp.

complex128_t twonorm ( const complex128_t x,
int32_t  len 
)

Definition at line 872 of file SGVector.cpp.

int32_t unique ( T *  output,
int32_t  size 
) [static]

performs a inplace unique of a vector of type T using quicksort returns the new number of elements

Definition at line 1144 of file SGVector.cpp.

int32_t unique ( complex128_t output,
int32_t  size 
)

Definition at line 1158 of file SGVector.cpp.

int32_t unref ( ) [protected, inherited]

decrement reference counter and deallocate object if refcount is zero before or after decrementing it

Returns:
reference count

Definition at line 87 of file SGReferencedData.cpp.

void vec1_plus_scalar_times_vec2 ( T *  vec1,
const T  scalar,
const T *  vec2,
int32_t  n 
) [static]

x=x+alpha*y

Definition at line 580 of file SGVector.cpp.

void vec1_plus_scalar_times_vec2 ( float64_t vec1,
float64_t  scalar,
const float64_t vec2,
int32_t  n 
)

Definition at line 588 of file SGVector.cpp.

void vec1_plus_scalar_times_vec2 ( float32_t vec1,
float32_t  scalar,
const float32_t vec2,
int32_t  n 
)

Definition at line 601 of file SGVector.cpp.

static void vector_multiply ( T *  target,
const T *  v1,
const T *  v2,
int32_t  len 
) [static]

compute vector multiplication

Definition at line 478 of file SGVector.h.

void zero ( )

fill vector with zeros

Definition at line 110 of file SGVector.cpp.

void zero ( )

Definition at line 117 of file SGVector.cpp.


Member Data Documentation

T* vector

vector

Definition at line 704 of file SGVector.h.

length of vector

Definition at line 706 of file SGVector.h.


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