Biogeme: Python Library  2.5
Public Member Functions | Public Attributes | List of all members
bio_expression.Sum Class Reference

Class representing the sum of the same expression applied to a list of data. More...

Inheritance diagram for bio_expression.Sum:
bio_expression.Expression

Public Member Functions

def __init__ (self, term, iteratorName)
 
def getExpression (self)
 
- Public Member Functions inherited from bio_expression.Expression
def __init__ (self)
 Constructor.
 
def getExpression (self)
 
def getID (self)
 
def __str__ (self)
 
def __neg__ (self)
 
def __add__ (self, expression)
 
def __radd__ (self, expression)
 
def __sub__ (self, expression)
 
def __rsub__ (self, expression)
 
def __mul__ (self, expression)
 
def __rmul__ (self, expression)
 
def __div__ (self, expression)
 
def __rdiv__ (self, expression)
 
def __truediv__ (self, expression)
 Support for Python version 3.x. More...
 
def __rtruediv__ (self, expression)
 Support for Python version 3.x. More...
 
def __mod__ (self, expression)
 
def __pow__ (self, expression)
 
def __rpow__ (self, expression)
 
def __and__ (self, expression)
 
def __or__ (self, expression)
 
def __eq__ (self, expression)
 
def __ne__ (self, expression)
 
def __le__ (self, expression)
 
def __ge__ (self, expression)
 
def __lt__ (self, expression)
 
def __gt__ (self, expression)
 

Public Attributes

 function
 
 iteratorName
 
 operatorIndex
 
- Public Attributes inherited from bio_expression.Expression
 operatorIndex
 

Detailed Description

Class representing the sum of the same expression applied to a list of data.

The concept of iterators identifies a sequence such that, for each instance, the value of the variables is read from the data file, and an expression can be evaluated. The two expressions described in this section consider one iterator and one expression, and evaluate the expression for each instance defined by the iterator. A sum can then be computed. Example:

1 prob = bioLogit(V,av,CHOICE)
2 rowIterator('obsIter')
3 loglikelihood = Sum(log(prob),'obsIter')

Definition at line 676 of file bio_expression.py.

Constructor & Destructor Documentation

def bio_expression.Sum.__init__ (   self,
  term,
  iteratorName 
)
Parameters
termany valid bio_expression
iteratorNamename of an iterator already defined

Definition at line 679 of file bio_expression.py.


The documentation for this class was generated from the following file:
Copyright 2016 Michel Bierlaire