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Biogeme: Python Library
2.5
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Class calculating a logit choice probability. More...
Public Member Functions | |
| def | __init__ (self, util, av, choice) |
| 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 | |
| prob | |
| av | |
| choice | |
| operatorIndex | |
| Public Attributes inherited from bio_expression.Expression | |
| operatorIndex | |
Class calculating a logit choice probability.
Computes the probability given by the logit model, that is
![\[ \frac{a_i e^{V_i}}{\sum_{j=1}^{J} a_j e^{V_j}} \]](form_19.png)
Example:
Definition at line 914 of file bio_expression.py.
| def bio_expression.bioLogit.__init__ | ( | self, | |
| util, | |||
| av, | |||
| choice | |||
| ) |
| util | dictionary (see Python documentation) containing the utility functions  . |
| av | dictionary (see Python documentation) containing the availability conditions for each alternative  (if 0, alternative is not available, if different from zero, it is available). The number of entries and the labeling must be consistent with utilities. |
| choice | expression providing the index of the alternative for which the probability is being computed. |
Definition at line 928 of file bio_expression.py.
