Chemical Data Processing Library Python API - Version 1.4.0
Public Member Functions | Properties | List of all members
CDPL.Math.ConstULMatrixColumn Class Reference

Vector expression proxy that views a single column of an underlying matrix. More...

+ Inheritance diagram for CDPL.Math.ConstULMatrixColumn:

Public Member Functions

None __init__ (ConstULMatrixColumn c)
 Contructs a copy of the ConstULMatrixColumn instance c. More...
 
None __init__ (ConstULMatrixExpression m, int i)
 Constructs the column proxy viewing column i of m. More...
 
int getIndex ()
 Returns the column index this proxy refers to within the wrapped matrix. More...
 
int getObjectID ()
 Returns the numeric identifier (ID) of the wrapped C++ class instance. More...
 
bool isEmpty ()
 Tells whether the column is empty (the wrapped matrix has zero rows). More...
 
int getSize ()
 Returns the size of the column (number of rows of the wrapped matrix). More...
 
int getElement (int i)
 Returns the element at row i of the column. More...
 
object toArray ()
 Converts the ConstULMatrixColumn instance into a corresponding numpy.ndarray object. More...
 
ConstULMatrixExpression getData ()
 Returns the wrapped matrix. More...
 
bool __eq__ (ConstULMatrixColumn c)
 Returns the result of the comparison operation self == c. More...
 
bool __eq__ (ConstULVectorExpression e)
 Returns the result of the comparison operation self == e. More...
 
bool __ne__ (ConstULMatrixColumn c)
 Returns the result of the comparison operation self != c. More...
 
bool __ne__ (ConstULVectorExpression e)
 Returns the result of the comparison operation self != e. More...
 
int __call__ (int i)
 Returns the element at row i of the column. More...
 
int __getitem__ (int i)
 Returns the element at row i of the column. More...
 
int __len__ ()
 Returns the size of the column (number of rows of the wrapped matrix). More...
 
str __str__ ()
 Returns a string representation of the ConstULMatrixColumn instance. More...
 
ConstULMatrixColumn __pos__ ()
 Returns self. More...
 
ConstULVectorExpression __neg__ ()
 Returns the result of the operation self * -1. More...
 
ConstULVectorExpression __add__ (ConstULVectorExpression e)
 Returns the result of the addition operation self + e. More...
 
ConstULVectorExpression __sub__ (ConstULVectorExpression e)
 Returns the result of the subtraction operation self - e. More...
 
ConstULVectorExpression __mul__ (int t)
 Returns the result of the multiplication operation self * t. More...
 
ConstULVectorExpression __mul__ (ConstULMatrixExpression e)
 Returns the result of the multiplication operation self * e. More...
 
ConstULVectorExpression __div__ (int t)
 Returns the result of the division operation self // t. More...
 
ConstULVectorExpression __truediv__ (int t)
 Returns the result of the true division operation self / t. More...
 
ConstULVectorExpression __rmul__ (int t)
 Returns the result of the multiplication operation t * self. More...
 

Properties

 objectID = property(getObjectID)
 
 size = property(getSize)
 
 data = property(getData)
 
 index = property(getIndex)
 

Detailed Description

Vector expression proxy that views a single column of an underlying matrix.

Constructor & Destructor Documentation

◆ __init__() [1/2]

None CDPL.Math.ConstULMatrixColumn.__init__ ( ConstULMatrixColumn  c)

Contructs a copy of the ConstULMatrixColumn instance c.

Parameters
cThe ConstULMatrixColumn instance to copy.

◆ __init__() [2/2]

None CDPL.Math.ConstULMatrixColumn.__init__ ( ConstULMatrixExpression  m,
int  i 
)

Constructs the column proxy viewing column i of m.

Parameters
mThe wrapped matrix.
iThe zero-based column index to view.

Member Function Documentation

◆ getIndex()

int CDPL.Math.ConstULMatrixColumn.getIndex ( )

Returns the column index this proxy refers to within the wrapped matrix.

Returns
The zero-based column index.

◆ getObjectID()

int CDPL.Math.ConstULMatrixColumn.getObjectID ( )

Returns the numeric identifier (ID) of the wrapped C++ class instance.

Different Python ConstULMatrixColumn instances may reference the same underlying C++ class instance. The commonly used Python expression a is not b thus cannot tell reliably whether the two ConstULMatrixColumn instances a and b reference different C++ objects. The numeric identifier returned by this method allows to correctly implement such an identity test via the simple expression a.getObjectID() != b.getObjectID().

Returns
The numeric ID of the internally referenced C++ class instance.

◆ isEmpty()

bool CDPL.Math.ConstULMatrixColumn.isEmpty ( )

Tells whether the column is empty (the wrapped matrix has zero rows).

Returns
True if the wrapped matrix has zero rows, and False otherwise.

◆ getSize()

int CDPL.Math.ConstULMatrixColumn.getSize ( )

Returns the size of the column (number of rows of the wrapped matrix).

Returns
The number of rows.

◆ getElement()

int CDPL.Math.ConstULMatrixColumn.getElement ( int  i)

Returns the element at row i of the column.

Parameters
iThe zero-based row index.
Returns
The value of the element m(i, index).

◆ toArray()

object CDPL.Math.ConstULMatrixColumn.toArray ( )

Converts the ConstULMatrixColumn instance into a corresponding numpy.ndarray object.

Returns
The generated numpy.ndarray object.
See also
[NUMPY]

◆ getData()

ConstULMatrixExpression CDPL.Math.ConstULMatrixColumn.getData ( )

Returns the wrapped matrix.

Returns
The wrapped matrix.

◆ __eq__() [1/2]

bool CDPL.Math.ConstULMatrixColumn.__eq__ ( ConstULMatrixColumn  c)

Returns the result of the comparison operation self == c.

Parameters
cThe ConstULMatrixColumn instance to be compared with.
Returns
The result of the comparison operation.

◆ __eq__() [2/2]

bool CDPL.Math.ConstULMatrixColumn.__eq__ ( ConstULVectorExpression  e)

Returns the result of the comparison operation self == e.

Parameters
eThe ConstULVectorExpression instance to be compared with.
Returns
The result of the comparison operation.

◆ __ne__() [1/2]

bool CDPL.Math.ConstULMatrixColumn.__ne__ ( ConstULMatrixColumn  c)

Returns the result of the comparison operation self != c.

Parameters
cThe ConstULMatrixColumn instance to be compared with.
Returns
The result of the comparison operation.

◆ __ne__() [2/2]

bool CDPL.Math.ConstULMatrixColumn.__ne__ ( ConstULVectorExpression  e)

Returns the result of the comparison operation self != e.

Parameters
eThe ConstULVectorExpression instance to be compared with.
Returns
The result of the comparison operation.

◆ __call__()

int CDPL.Math.ConstULMatrixColumn.__call__ ( int  i)

Returns the element at row i of the column.

Parameters
iThe zero-based row index.
Returns
The value of the element m(i, index).

◆ __getitem__()

int CDPL.Math.ConstULMatrixColumn.__getitem__ ( int  i)

Returns the element at row i of the column.

Parameters
iThe zero-based row index.
Returns
The value of the element m(i, index).

◆ __len__()

int CDPL.Math.ConstULMatrixColumn.__len__ ( )

Returns the size of the column (number of rows of the wrapped matrix).

Returns
The number of rows.

◆ __str__()

str CDPL.Math.ConstULMatrixColumn.__str__ ( )

Returns a string representation of the ConstULMatrixColumn instance.

Returns
The generated string representation.

◆ __pos__()

ConstULMatrixColumn CDPL.Math.ConstULMatrixColumn.__pos__ ( )

Returns self.

Returns
self.

◆ __neg__()

ConstULVectorExpression CDPL.Math.ConstULMatrixColumn.__neg__ ( )

Returns the result of the operation self * -1.

Returns
A ConstULVectorExpression instance holding the result of the element negation.

◆ __add__()

ConstULVectorExpression CDPL.Math.ConstULMatrixColumn.__add__ ( ConstULVectorExpression  e)

Returns the result of the addition operation self + e.

Parameters
eSpecifies the second addend.
Returns
A ConstULVectorExpression instance holding the result of the addition.

◆ __sub__()

ConstULVectorExpression CDPL.Math.ConstULMatrixColumn.__sub__ ( ConstULVectorExpression  e)

Returns the result of the subtraction operation self - e.

Parameters
eSpecifies the subtrahend.
Returns
A ConstULMatrixColumn instance holding the result of the subtraction.

◆ __mul__() [1/2]

ConstULVectorExpression CDPL.Math.ConstULMatrixColumn.__mul__ ( int  t)

Returns the result of the multiplication operation self * t.

Parameters
tSpecifies the multiplier.
Returns
A ConstULVectorExpression instance holding the result of the multiplication.

◆ __mul__() [2/2]

ConstULVectorExpression CDPL.Math.ConstULMatrixColumn.__mul__ ( ConstULMatrixExpression  e)

Returns the result of the multiplication operation self * e.

Parameters
eSpecifies the multiplier.
Returns
A ConstULVectorExpression instance holding the result of the multiplication.

◆ __div__()

ConstULVectorExpression CDPL.Math.ConstULMatrixColumn.__div__ ( int  t)

Returns the result of the division operation self // t.

Parameters
tSpecifies the divisor.
Returns
A ConstULVectorExpression instance holding the result of the division.

◆ __truediv__()

ConstULVectorExpression CDPL.Math.ConstULMatrixColumn.__truediv__ ( int  t)

Returns the result of the true division operation self / t.

Parameters
tSpecifies the divisor.
Returns
A ConstULVectorExpression instance holding the result of the division.

◆ __rmul__()

ConstULVectorExpression CDPL.Math.ConstULMatrixColumn.__rmul__ ( int  t)

Returns the result of the multiplication operation t * self.

Parameters
tSpecifies the multiplicand.
Returns
A ConstULVectorExpression instance holding the result of the multiplication.