track (version 1.1.9)

track.info: Return filenames and directories for tracked variables.

Description

Return filenames and directories for tracked variables.

Usage

track.filename(expr, list = character(0), pos = 1, envir = as.environment(pos), suffix = FALSE)
track.datadir(pos = 1, envir = as.environment(pos), relative = TRUE)
track.info(pos = NULL, envir = as.environment(pos), all=is.null(pos))
track.mem(pos = NULL, envir = as.environment(pos), all=is.null(pos))
env.is.tracked(pos = 1, envir = as.environment(pos))
tracked.envs(envirs=search())

Arguments

expr

An unquoted variable name

list

A character vector of variable names

pos

The search path position of the environment being tracked (default is 1 for the global environment)

envir

The environment being tracked. This is an alternate way (to the use of pos=) of specifying the environment being tracked, but should be rarely needed.

suffix

: Return the filename with the RData suffix (extension) (taken from track.options("RDataSuffix"))

relative

: Return a path relative to the current working directory, or an absolute path?

all

Return info about all tracked environments?

envirs

A list or vector of objects that can be interpreted as environments by as.environment

Value

See Also

Overview and design of the track package.

Examples

##############################################################
# Warning: running this example will cause variables currently
# in the R global environment to be written to .RData files
# in a tracking database on the filesystem under R's temporary
# directory, and will cause the variables to be removed temporarily
# from the R global environment.
# It is recommended to run this example with a fresh R session
# with no important variables in the global environment.
##############################################################

library(track)
track.start(dir=file.path(tempdir(), 'rdatadir4'))
x <- 33
X <- array(1:24, dim=2:4)
Y <- list(a=1:3,b=2)
X[2] <- -1
track.datadir(relative=TRUE)
track.datadir(relative=FALSE)
track.filename(list=c("x", "X"))
track.info()
track.mem()
env.is.tracked(pos=1)
env.is.tracked(pos=2)
# Would normally not call track.stop(), but do so here to clean up after
# running this example.
track.stop(pos=1, keepVars=TRUE)