callfest
is a simple wrapper over your functions which consumes a
set of arguments, computes all combinations of these arguments and
invokes your function on each of the combinations.
It allows parallel invocations and computes the total elapsed time, too.
Simply:
callfest(list, a=1:2, b=3:4)
will give you the list of all combinations:
[[1]]
[[1]]$a
[1] 1
[[1]]$b
[1] 3
[[2]]
[[2]]$a
[1] 2
[[2]]$b
[1] 3
[[3]]
[[3]]$a
[1] 1
[[3]]$b
[1] 4
[[4]]
[[4]]$a
[1] 2
[[4]]$b
[1] 4
You can see the elapsed time:
R> res <- callfest(list, a=1:2, b=3:4)
R> attr(res, "time")
user system elapsed
0 0 0
You can call the function more than once:
R> control <- callfestControl(list, N=2)
R> res <- callfest(control, a=1:2, b="a")
[[1]]
[[1]][[1]]
[[1]][[1]]$a
[1] 1
[[1]][[1]]$b
[1] a
Levels: a
[[1]][[2]]
[[1]][[2]]$a
[1] 1
[[1]][[2]]$b
[1] a
Levels: a
[[2]]
[[2]][[1]]
[[2]][[1]]$a
[1] 2
[[2]][[1]]$b
[1] a
Levels: a
[[2]][[2]]
[[2]][[2]]$a
[1] 2
[[2]][[2]]$b
[1] a
Levels: a
Elapsed 0.000000 seconds
Parallel computing is possible by passing parallel=TRUE
to the
control object.
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