[R] Scope of variable?

[jim holtman]

I think you meant:

a <- c(a, v)

and not

a <- cat(a, v)


On Wed, Mar 16, 2011 at 7:41 AM, Ravi Kulkarni <ravi.kulk at gmail.com> wrote:
> I know this is a very elementary question... I could not find a solution
> looking at old posts.
> I am unable to access a variable outside the scope of a for loop, even when
> the variable was defined before the loop:
>
> haar <- function() {
> a = c(1.4560773, 2.3752412, 0.9798882, 3.0909252, 2.3986487, 1.8581543)
>
> for (i in c(1:100)) {
>        m = matrix(rnorm(36)+1i*rnorm(36),6)
>        qrm = qr(m)
>        Q = qr.Q(qrm)
>        eival = eigen(Q, only.values=T)
>        ph = Arg(eival$values)
>        v = Mod(ph)
>        a = cat(a,v)
> }
> hist(a)
> }
>
> The hist command does not plot because a is null there.
> How do I plot a? I tried using
>
>                          assign("a", a, envir = .GlobalEnv)
>
> but that does not help either... Neither did using <<-
> Any help is most welcome.
>  Ravi
>
> --
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>
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>



-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?