Thanks for the help!

However, for the code in #2, it seems to just randomly split up the vectors.
I would still like to keep the integrity of each vector.

For example:

if v1 = (1,2,3)
   v2 = (4,5,6)

output = (0,0,0,1,2,3,0,0,0,0,4,5,6,0,0,0,0,0,0,0,0,0,0,0,0) - which has a
specified length of 25

With v1 and v2 inserted in at random locations.

On Wed, Oct 27, 2010 at 10:25 AM, Jonathan P Daily <jdaily@usgs.gov> wrote:

>
> 1)
> rands <- runif(5)
> rands <- rands/sum(rands)*100
>
> 2)
> # assume vectors are v1, v2, etc.
> v_all <- c(v1, v2, ...)
> v_len <- length(v_all)
>
> output <- rep(0,25)
> output[sample(1:25, v_len)] <- v_all
>
> --------------------------------------
> Jonathan P. Daily
> Technician - USGS Leetown Science Center
> 11649 Leetown Road
> Kearneysville WV, 25430
> (304) 724-4480
> "Is the room still a room when its empty? Does the room,
> the thing itself have purpose? Or do we, what's the word... imbue it."
>     - Jubal Early, Firefly
>
>
>  From: Aaron Lee <aaron.zl.lee@gmail.com> To: r-help@r-project.org Date: 10/27/2010
> 11:06 AM Subject: [R] Generate random percentages and placing vectors Sent
> by: r-help-bounces@r-project.org
> ------------------------------
>
>
>
> Hello everyone,
>
> I have two questions:
>
> 1.) I would like to generate random percentages that add up to 100. For
> example, if I need 5 percentages, I would obtain something like: 20, 30,
> 40,
> 5, 5. Is there some way to do this in R?
>
> 2.) I would like to insert vectors of specified length into a larger vector
> of specified length randomly, and fill the gaps with zeroes. For example,
> if
> I have 3 vectors of length 3, 2, and 2 with values and I would like to
> randomly place them into a vector of length 25 made of 0's.
>
> Thank you in advance!
>
> -Aaron
>
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>
>

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