[R] writing functions

[graham lawrence]

This is my first attempt at writing a function.  Would someone kindly 
explain its result, or non-result.  Thanking you in advance.

restore<-function(){n<-Nx}
>restore
function(){n<-Nx}
>n
[1] 408
>Nx
[1] 10
>restore()
>n
[1] 408

and, by way of variation

>restora<-function(n){n<-Nx}
>n
[1] 408
>restora
function(n){n<-Nx}
>restora()
>n
[1] 408
>restora(n)
>n
[1] 408

graham lawrence

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