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Relationship between global/local triggers/alerts/interventions #423
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Hi Kevin,
As far As I can see the alerts are not based on people dying rather the main interventions are based on "Detected Cases" or "ICU cases" then later on other interventions or changes in policy are triggered by things like people being off work.
yes the interventions are controlled by the "alerts" , "thresholds", "controls" and "triggers". There isn't a formal differentiation between those words in the code but you can work out most of the variables from the context in the code.
There are three types of "trigger" - which are often linked to a stochastic decision, so reaching the threshold doesn't always result in a change of policy.
There are some comments in the markdown (.md) files and also occasionally in the C code which can be helpful to working out what the triggers are, but be aware that the naming of the parameters don't have a consistent convention so can be a bit confusing. I have found the text in "Read Params" give some information but some things can only be worked out by following the logic in the code. Note that some parameters are never used. Triggers
Do Switches
I don't fully understand what you mean by "model" , but in general I think you could force an intervention to occur after the first case is detected by setting the threshold to 1. and one of the Proportion variables (usually called .....Prop....) to 1. or 0 as appropriate
At the end of this reply there is an incomplete partial list of some of the "triggers" - its not super helpful and just grepped out of some python code I am working on but might give you some pointers regards, Thomas Incomplete list of some triggers
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Hey Thomas, Thank you so much for this. This is all really helpful. There's so much here that it may take me some time to work through it. Thanks again! I really appreciate it. |
No worries Kevin, I am slowly working my way through understanding the code, if it becomes clearer to me I will try to post some more concise info. regards |
Hi all,
I think this is a support question and I know the model is released without support so please feel free to ignore and focus on more pressing matters. I am sure this will be covered in future documentation releases.
If you do have time, I'm just looking for some information on the relationship between the global and local triggers, alerts, and interventions.
I can't quite grasp the logic from the code for the alerts. Is it that when people start dying, an alert goes off. Once that alert goes off, the interventions start happening? How is this represented by the parameters?
For example, what is the link between the parameters "Alert trigger starts after interventions", ""Day of year trigger is reached", "Number of deaths accummulated before alert", and "Day of year interventions start"?
If I want to model the interventions starting the day after the first case is detected, how exactly do I configure these parameters? How do we control when the first case occurs?
Thanks for your help!
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