An R Package for calling functions over a combination of arguments
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DESCRIPTION
NAMESPACE
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README.md
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README.md

callfest: An R Package for calling functions over a combination of arguments

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.