From pengyu.ut at gmail.com  Wed Dec  2 22:39:01 2009
From: pengyu.ut at gmail.com (Peng Yu)
Date: Wed, 2 Dec 2009 15:39:01 -0600
Subject: [Rd] [R] go back a block of code in history
In-Reply-To: <4B169D88.2090202@statistik.tu-dortmund.de>
References: <366c6f340911302015xc2c5e3bkd188b7cc8a77b425@mail.gmail.com>
	<4B169D88.2090202@statistik.tu-dortmund.de>
Message-ID: <366c6f340912021339y67f773d6w9ce63235ccc3b2fd@mail.gmail.com>

2009/12/2 Uwe Ligges <ligges at statistik.tu-dortmund.de>:
>
>
> 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.

It would be more convenient if there is a way to roll back a block of
code in the history. Could the development team add this feature to
the to-do list?

>>> 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
>>
>>
>> ______________________________________________
>> R-help at 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.
>



[Rd] [R] go back a block of code in history
Peng Yu