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] "2026-02-09 14:24:35 UTC" "2026-02-09 14:24:35 UTC"
#> [3] "2026-02-09 14:24:36 UTC" "2026-02-09 14:24:36 UTC"
#> [5] "2026-02-09 14:24:37 UTC" "2026-02-09 14:24:37 UTC"