| aggregate-methods {surveillance} | R Documentation |
Method to aggregate the matrix slots of an sts object.
Either the time series is aggregated so a new sampling frequency of
nfreq units per time slot is obtained – i.e as in
aggregate.ts. The other option is to aggregate over all
ncol units.
Note: The function is not 100% consistent with what the generic
function aggregate does.
Warning: In case the aggregation is by unit the upperbound slot is set to NA. Furthermore the MAP object is left as is, but the object cannot be plotted anymore.
stsby=="time". If
nfreq=="all" then all time instances are summed.
returns an object of class sts
data(ha) has4 <- disProg2sts(ha) dim(has4) dim(aggregate(has4,by="unit")) dim(aggregate(has4,nfreq=13))