Wrap addresses function not appropriete

[PaulMelloy]

Just want to document and discuss dropping the function wrap_address.

I can't see the use for this function in spore dispersal models ever. Correct me if I am wrong, but the function seems to: if an infection coordinate is generated outside the paddock dimensions to takes the x or y coordinate and moderates it. for example

If the paddock dimensions are 100m x 100m and the grid is 1x1m
and a coordinate is generated of c(50,105) the function "wraps" this address so the output is c(50,5)

I am in favour of if a coordinate is generated which is outside the study area the coordinates are dropped. Therefore I suggest removing this function.

[IhsanKhaliq]

Isn't the wrapping option simulate spread outside the paddock? See a piece from Art's paper, '
The spore dispersal vectors are considered to originate from the center of the subunit of origin. The spores land in whatever subunit contains the termination point of the vector. The destination subunit may be the same subunit from which a spore has originated, or it may be another subunit within or outside the field. When the destination subunit is located outside the field, the model can be set to either of two options, to ignore it or to wrap it.
When wrapping is chosen, the model simulates the equivalent of an infinite area made up of repeated copies of the field. When wrapping is not chosen, the model simulates a finite area isolated
from other sources of disease'

[adamhsparks]

I’m with Paul on this. We can talk with Art about it but I can’t see a good reason to have infinite paddocks. If your area of interest is larger than a single paddock, provide a larger area to model.

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On 18 Dec 2020, at 09:20, Paul Melloy ***@***.***> wrote:  Just want to document and discuss dropping the function wrap_address. I can't see the use for this function in spore dispersal models ever. Correct me if I am wrong, but the function seems to: if an infection coordinate is generated outside the paddock dimensions to takes the x or y coordinate and moderates it. for example If the paddock dimensions are 100m x 100m and the grid is 1x1m and a coordinate is generated of c(50,105) the function "wraps" this address so the output is c(50,5) I am in favour of if a coordinate is generated which is outside the study area the coordinates are dropped. Therefore I suggest removing this function. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[IhsanKhaliq]

@PaulMelloy could you please confirm that wrapping option has been removed from the model, so I can delete the relevant text from the manuscript?

[PaulMelloy]

Yes wrapping has been removed from the model