ProportionalityRate of change is proportional to that of the influencing stock |
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Proportionality expresses the fact that the rate of change for an influenced stock B is proportional to the net rate of change for an influencing stock A, which is connected via the stockInfoInput
. The factor of proportionality k is given by the parameter coefficient
. The rate of change for the stock B that is connected to the flowPort
accordingly is given by the following equation, which uses Newton's dot notation for rates:
coefficient = 1
the input u can be used to provide a variable factor of proportionality.hasRateOutput |
Value: false Type: Boolean Description: = true, if the rate is reported via real output connectors |
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coefficient |
Value: 1 Type: InputType Description: Constant coefficient |
hasFactor |
Value: false Type: Boolean Description: = true, if coefficient is to be multiplied with input u |
flowPort |
Type: FlowPort Description: Used to represent stock and flow connections |
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y |
Type: RealOutput Description: Output of current rate of flow |
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y1 |
Type: RealOutput Description: Output of current rate of flow |
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stockInfoInput |
Type: StockInfoInput Description: Input of record with stock-related information |
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u |
Type: RealInput Description: Input of factor with regard to coffeficient |
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one |
Type: RealInput Description: Default factor |
parCoefficient |
Type: ConstantConverter Description: Constant coefficient (optional) |
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actualCoefficient |
Type: Product_2 Description: Inputs are multiplied |
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absoluteSensor1 |
Type: AbsoluteSensor Description: Reports basic stock–related information |
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linearilyChanging |
Type: ExogenousChange Description: A stock is filled or drained at a given rate |
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fracGrowthRate |
Type: Product_2 Description: Inputs are multiplied |
BusinessSimulation.CausalLoop Process driven by proportionality with additional exponential delay |