Description Usage Arguments Details Value
Specifies indicator variable for rows containing an external contact interval (from the community or environment to a susceptible individual) in model formula.
1 | ext(x)
|
ex |
A binary variable such that |
If ex
is an indicator variable for external infection, then
exog(ex)
can be added to the model formula to allow separate
handling of internal and external contact intervals.
A factor with two levels
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