pywr.parameters.DeficitParameter

class pywr.parameters.DeficitParameter(model, node, *args, **kwargs)

Parameter track the deficit (max_flow - actual flow) of a Node

Parameters
modelpywr.model.Model
nodeNode

The node that will have it’s deficit tracked

Notes

This parameter is a little unusual in that it’s value is calculated during the after method, not calc_values. It is intended to be used in combination with a recorder (e.g. NumpyArrayNodeRecorder) to record the deficit ( defined as requested - actual flow) at a node. Note that this means recording this parameter does not give you the value that was used by the solver in this timestep. Alternatively, this parameter can be used in the model by other parameters and will evaluate to yesterdays deficit, where the deficit in the zeroth timestep is zero.

__init__(*args, **kwargs)

Methods

__init__(*args, **kwargs)

after(self)

before(self)

finish(self)

get_all_values(self)

get_constant_value(self)

Return a constant value.

get_double_lower_bounds(self)

get_double_upper_bounds(self)

get_double_variables(self)

get_integer_lower_bounds(self)

get_integer_upper_bounds(self)

get_integer_variables(self)

get_value(self, ScenarioIndex scenario_index)

load(type cls, model, data)

register(type cls)

reset(self)

set_double_variables(self, double[)

set_integer_variables(self, int[)

setup(self)

unregister(type cls)

value(self, Timestep ts, ...)

Attributes

children

comment

comment: unicode

double_size

double_size: 'int'

integer_size

integer_size: 'int'

is_constant

is_variable

is_variable: 'bool'

model

name

node

node: pywr._core.Node

parents

size

tags

tags: dict