Update method for "epidataCS"
The update method for the "epidataCS" class
may be used to modify the hyperparameters ε (eps.t)
and δ (eps.s), the indicator matrix qmatrix of
possible ways of transmission between the event types, and the numerical
accuracy nCircle2Poly of the polygonal representation of a
circle.
The update method will also update the auxiliary information contained
in an "epidataCS" object accordingly, e.g., the vector of potential
sources of each event, or the polygonal representation of the influence
region.
## S3 method for class 'epidataCS' update(object, eps.t, eps.s, qmatrix, nCircle2Poly, ...)
object |
an object of class |
eps.t |
numeric vector of length the number of events in
|
eps.s |
numeric vector of length the number of events in
|
qmatrix |
square indicator matrix (0/1 or TRUE/FALSE) for possible transmission between the event types. |
nCircle2Poly |
accuracy (number of edges) of the polygonal approximation of a circle. |
... |
unused (argument of the generic). |
The updated "epidataCS" object.
Sebastian Meyer
class "epidataCS".
data("imdepi")
## assume different interaction ranges and simplify polygons
imdepi2 <- update(imdepi, eps.t = 20, eps.s = Inf, nCircle2Poly = 16)
(s <- summary(imdepi))
(s2 <- summary(imdepi2))
## The update reduced the number of infectives (along time)
## because the length of the infectious periods is reduced. It also
## changed the set of potential sources of transmission for each
## event, since the interaction is shorter in time but wider in space
## (eps.s=Inf means interaction over the whole observation region).Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.