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PropertyValueChanger

The PropertyValueChanger intervention class assigns new individual property values to individuals. You must update one property value and have the option to update another using New_Property_Value. This parameter is generally used to move patients from one intervention state in the health care cascade (InterventionStatus) to another, though it can be used for any individual property. Individual property values are user-defined in the demographics file (see NodeProperties and IndividualProperties for more information). Note that the HINT feature does not need to be enabled to use this intervention. To instead change node properties, use parameter-campaign-node-nodepropertyvaluechanger.

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Parameters are case-sensitive. For Boolean parameters, set to 1 for true or 0 for false.
Minimum, maximum, or default values of "NA" indicate that those values are not applicable for
that parameter.

EMOD does not use true defaults; that is, if the dependency relationships indicate that a 
parameter is required, you must supply a value for it. However, many of the tools used to work 
with EMOD will use the default values provided below.

JSON format does not permit comments, but you can add "dummy" parameters to add contextual
information to your files. Any keys that are not EMOD parameter names will be ignored by the
model.

The table below describes all possible parameters with which this class can be configured. The JSON example that follows shows one potential configuration.

Parameter Example Description Type Min Max Default
Daily_Probability link The daily probability that an individual will move to the Target_Property_Value. float 0 1 1
Disqualifying_Properties link A list of IndividualProperty key:value pairs that cause an intervention to be aborted (persistent interventions will stop being distributed to nodes with these values). See parameters for more information. Generally used to control the flow of health care access. For example, to prevent the same individual from accessing health care via two different routes at the same time. array of strings nan nan []
Dont_Allow_Duplicates link If an individual's container has an intervention, set to true (1) to prevent them from receiving another copy of the intervention. Supported by all intervention classes. boolean 0 1 0
Intervention_Name link The optional name used to refer to this intervention as a means to differentiate it from others that use the same class. string nan nan nan
Maximum_Duration link The maximum amount of time individuals have to move to a new group. This timing works in conjunction with Daily_Probability. float -1 3.4e+38 3.40E+38
New_Property_Value link An optional IndividualProperty key:value pair that will be assigned when the intervention is distributed. See parameters for more information. Generally used to indicate the broad category of health care cascade to which an intervention belongs to prevent individuals from accessing care through multiple pathways. For example, if an individual must already be taking a particular medication to be prescribed a new one. string nan nan nan
Revert link The number of days before an individual moves back to their original group. float 0 10000 0
Target_Property_Key link The name of the individual property type whose value will be updated by the intervention. string nan nan nan
Target_Property_Value link The user-defined value of the individual property that will be assigned to the individual. string nan nan nan

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