Package 'cache'

Cache or Retrieve Computation Results

Description

Cache or retrieve an evaluated expression. Results are always made available in the current environment.

Usage

cache(..., .cachedir = here(".cache-R"), .rerun = FALSE)

Arguments

...	Named expressions to be cached or retrieved.
.cachedir	Directory where cache files are stored. Default is a directory called .cache-R located at the project root.
.rerun	Whether or not to clear the cache and re-run the provided expressions. Defaults to FALSE.

Examples

tmp <- tempdir()

# Takes 1 second to execute
cache(a = {
  Sys.sleep(1)
  "Hello World"
}, .cachedir = tmp)

# Executes instantly
cache(a = {
  Sys.sleep(1)
  "Hello World"
}, .cachedir = tmp)

# Result is available in the current environment
print(a)

# Re-run the expression
cache(a = {
  Sys.sleep(1)
  "Hello World"
}, .cachedir = tmp, .rerun = TRUE)

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Load cached objects from cache directory

Description

Load cached objects from cache directory

Usage

cache_load(objnames = "*", .cachedir = here(".cache-R"))

Arguments

objnames	character list of object names to load.
.cachedir	path to cache directory. Defaults to the directory named .cache-R at the project root.

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