R help - Jun 2009 - Running a function through a vector with the scalars as arguments

I have a vector of probabilities that I would like to feed to rbinom()
and have it return a 1 or 0 for each element. I have tried simply
using the entire vector as the argument hoping R would understand.
Instead I get a scalar:


theProbs <- runif(10,0,1)
youreON <- rbinom(1, 1, theProbs)



Next I tried using the apply function but I could not get that to work either:


youreON2 <- lapply(probsFoo,rbinom, n=1, size=1, prob=theProbs))


I normally would just write a loop to run down the vector and spit out
the new vector but I am trying to learn to live without loops. Is
there any way to make this work with some flavor of apply?

Try this:

sapply(theProbs, rbinom, size = 1, n = 1)

You are using probsFoo in lapply, I don't know what is this.

On Wed, Jun 17, 2009 at 9:09 PM, Economics Guy
<economics.guy@gmail.com>wrote:
> I have a vector of probabilities that I would like to feed to rbinom()
> and have it return a 1 or 0 for each element. I have tried simply
> using the entire vector as the argument hoping R would understand.
> Instead I get a scalar:
>
>
> theProbs <- runif(10,0,1)
> youreON <- rbinom(1, 1, theProbs)
>
>
>
> Next I tried using the apply function but I could not get that to work
> either:
>
>
> youreON2 <- lapply(probsFoo,rbinom, n=1, size=1, prob=theProbs))
>
>
> I normally would just write a loop to run down the vector and spit out
> the new vector but I am trying to learn to live without loops. Is
> there any way to make this work with some flavor of apply?
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

	[[alternative HTML version deleted]]