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)
 Initializes a copy of the ConstULMatrixColumn instance c. More...
 
None __init__ (ConstULMatrixExpression e, int i)
 Initializes the ConstULMatrixColumn instance. 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)
 
object toArray ()
 
ConstULMatrixExpression getData ()
 Returns a reference to the wrapped matrix (via its stored closure). 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 a reference to the element at row i of the column. More...
 
int __getitem__ (int i)
 Returns a reference to 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__ ()
 
ConstULVectorExpression __neg__ ()
 
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)

Initializes a copy of the ConstULMatrixColumn instance c.

Parameters
cThe ConstULMatrixColumn instance to copy.

◆ __init__() [2/2]

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

Initializes the ConstULMatrixColumn instance.

Parameters
e
i

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.

◆ getData()

ConstULMatrixExpression CDPL.Math.ConstULMatrixColumn.getData ( )

Returns a reference to the wrapped matrix (via its stored closure).

Returns
A reference to the wrapped matrix closure.

◆ __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 a reference to the element at row i of the column.

Parameters
iThe zero-based row index.
Returns
A reference to the underlying element m(i, index).

◆ __getitem__()

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

Returns a reference to the element at row i of the column.

Parameters
iThe zero-based row index.
Returns
A reference to the underlying element.

◆ __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.

◆ __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.