[R] go back a block of code in history

[Uwe Ligges]

Peng Yu wrote:
> Suppose I run the following code in the R session. At the last prompt
> '>', I want to retrieve the second command (staring with 'y'). But I
> have to type up arrow many times, which is very inconvenient. I'm
> wondering if there is a way to configure R to skip block of code in
> the history?

I don't think so, but since you are writing your code in an editor 
(hopefully), it is probably easier to submit the relevant part of the 
code from the editor to R again.

Uwe Ligges




> 
>> x=list(a=c(1,2),b=c(3,4,5))
>> y=list(a=c(1,2),b=c(3,4,5))
>> lapply(seq(along=x)
> +     ,function(i){
> +       cbind(
> +           x[[i]]
> +           ,y[[i]]
> +           )
> +     }
> +     )
> [[1]]
>      [,1] [,2]
> [1,]    1    1
> [2,]    2    2
> 
> [[2]]
>      [,1] [,2]
> [1,]    3    3
> [2,]    4    4
> [3,]    5    5
> 
> 
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