get.pop.prediction: Accessing Prediction Object

In bayesPop: Probabilistic Population Projection

Accessing Prediction Object

Description

Function get.pop.prediction retrieves results of a prediction from disk and creates an object of class bayesPop.prediction. Function has.pop.prediction checks an existence of such results.

Usage

get.pop.prediction(sim.dir, aggregation = NULL, write.to.cache = TRUE)

has.pop.prediction(sim.dir)

pop.cleanup.cache(pop.pred)

Arguments

sim.dir	Directory where the prediction is stored. It should correspond to the value of the output.dir argument used in the pop.predict function.
aggregation	If given, the prediction object is considered to be an aggregation and both arguments are passed to get.pop.aggregation.
write.to.cache	Logical controlling if other functions are allowed to write the cache of this prediction object (see Details).
pop.pred	Object of class bayesPop.prediction.

Details

The pop.predict function stores resulting trajectories into a directory called output.dir/prediction. Here the argument sim.dir should correspond to output.dir (i.e. without the “prediction” part).

In addition to retrieving prediction results, the get.pop.prediction function also looks for a file called ‘cache.rda’ and loads it into an environment called cache. If it does not exist, it creates an empty cache environment. See pop.map - Section Performance and Caching. The environment can be cleaned up using the pop.cleanup.cache function which also deletes the ‘cache.rda’ file on disk. If write.to.cache is FALSE, other functions are not allowed to manipulate the ‘cache.rda’ file.

Value

Function has.pop.prediction returns a logical indicating if a prediction exists.

Function get.pop.prediction returns an object of class bayesPop.prediction.

Author(s)

Hana Sevcikova

See Also

bayesPop.prediction, get.pop.aggregation

Examples

sim.dir <- file.path(find.package("bayesPop"), "ex-data", "Pop")
pred <- get.pop.prediction(sim.dir)
summary(pred)

bayesPop documentation built on April 12, 2025, 1:24 a.m.