Usage
cache(name, expr, overwrite = FALSE, time = 3600, env = parent.frame())
Arguments
- name
Name of the object
- expr
Expression to evaluate
- overwrite
If `TRUE` saved over current objects
- time
Either time (seconds) for how long to cache the object(s) or the
time as a `POSIXt` object
- env
Environment to load object into if found
Value
Result of `expr`, or cached result
Examples
res <- .POSIXct(0)
for (i in 1:6) {
cache("foo", Sys.time(), time = 1)
Sys.sleep(0.5)
res[i] <- foo
}
res
#> [1] "2023-08-03 03:37:19 UTC" "2023-08-03 03:37:19 UTC"
#> [3] "2023-08-03 03:37:20 UTC" "2023-08-03 03:37:20 UTC"
#> [5] "2023-08-03 03:37:21 UTC" "2023-08-03 03:37:21 UTC"