stsAggregate: Aggregate the the series of an sts object

In jimhester/surveillance: Temporal and Spatio-Temporal Modeling and Monitoring of Epidemic Phenomena

Description

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) or the aggregation is over all ncol units.

Note: The function is not 100% consistent with what the generic function aggregate does.

Details

Warning: Aggregation by unit sets the upperbound slot to NA and the MAP object is left as-is, but the object cannot be plotted by unit any longer.

Methods

x = "sts", by="time", nfreq="all",...

x

an object of class sts

by

a string being either "time" or "unit"

nfreq

new sampling frequency if by=="time". If nfreq=="all" then all time instances are summed.

...

not used

returns an object of class sts

See Also

aggregate

Examples

  data("ha")
  has4 <- disProg2sts(ha)
  dim(has4)
  dim(aggregate(has4,by="unit"))
  dim(aggregate(has4,nfreq=13))

jimhester/surveillance documentation built on May 19, 2019, 10:33 a.m.