Get the first day of non-zero incidence across all variants and locations.

first_nonzero_incid(incid)

Arguments

incid

a multidimensional array containing values of the incidence for each time step (1st dimension), location (2nd dimension) and pathogen/strain/variant (3rd dimension)

Value

integer

Details

For each variant, find the first day of non-zero incidence. The maximum of these is the smallest possible point at which estimation can begin.

Author

Sangeeta Bhatia