Thanks!!! works perfectly. I'll use t(rmultinom(x, m, rep(1,n))/m) for
now and look up in my stats book the formula for determining the
number of sample sizes to achieve a given p level. The second question
was more pertaining to how many combinations are too many to attempt
to calculate every poss
Good point, I actually thought about doing some kind of sampling
before, but now I think I don't have a choice. Essentially, what I am
doing is calculating possible asset allocation possibilities, e.g.
N is the number of available assets and M is the available buckets of
money to spend on the asse
Reuben,
On Thu, Dec 11, 2008 at 9:28 PM, Reuben Cummings wrote:
> Good point, I actually thought about doing some kind of sampling
> before, but now I think I don't have a choice. Essentially, what I am
> doing is calculating possible asset allocation possibilities, e.g.
>
> N is the number of av
Dear Reuben,
[snip]
> my questions now are... how would I generalize functions 3 and 4 for m
> And, which of the 4 functions would be best for varying ranges of
> n and m? I am expecting values for n to range between 1 and 1e3, while
> m will range between 1 and 1e6.
>
> Reuben
>
Regarding your
Thanks for the suggestions!! I upgraded R which solved a few of my
problems and got the following functions to work:
# works for m > 2
# requires {prob]
multisets1 <- function(n, m) {
as.matrix(urnsamples(1:n, size = m, ordered = FALSE, replace = TRUE))
}
# works for m > 2
# requires {mu
On Thu, 11 Dec 2008, Reuben Cummings wrote:
Hi,
This has been asked before but not sufficiently answered from what I
could find. How do you create combinations
with repetitions (multisets) in R?
If I have
set <- array(1:3)
Why wrap 1:3 in array() ??
And I want to choose all combinations
Dear Reuben,
On Thu, Dec 11, 2008 at 12:53 PM, baptiste auguie wrote:
> Hi,
>
> Perhaps you can use expand.grid and then remove the mirror combinations,
>
>> values <- 1:3
>> tmp <- expand.grid(values, values)
>> unique.combs <- tmp[tmp[, 1]<=tmp[, 2], ]
>> unique.combs[do.call(order, unique.com
Hi,
Perhaps you can use expand.grid and then remove the mirror combinations,
values <- 1:3
tmp <- expand.grid(values, values)
unique.combs <- tmp[tmp[, 1]<=tmp[, 2], ]
unique.combs[do.call(order, unique.combs), ] # reorder if you wish
Var1 Var2
111
412
713
522
Hi,
This has been asked before but not sufficiently answered from what I
could find. How do you create combinations
with repetitions (multisets) in R?
If I have
> set <- array(1:3)
And I want to choose all combinations of picking 2 numbers, I want to
get a print out like
[,1] [,2]
[1,]
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