[R] interactive session

Niels Richard Hansen Niels.R.Hansen+lists at math.ku.dk
Thu Sep 30 22:34:43 CEST 2010



On 30/09/10 22.23, Peter Dalgaard wrote:
> On 09/30/2010 03:33 PM, Pam wrote:
>> Thanks Niels but it won't do.. please copy and paste the 2 lines below together
>> to your console in order to see what I mean:
>>
>> cat("?"); a<-readLines(n=1)
>> b<-paste("t",a,sep="")
>>
>> anyone / any idea to overcome this problem?
>>
>> Best,
>> Fatih
>>
>
> You might want to source() a file with those lines rather than pasting
> them to the console. There's just no way you can retroactively insert
> text between two already submitted lines.

Exactly, it works when you source() the file.

- Niels

>
> You can do things like this, though
>
> {cat("?"); a<-readLines(n=1)
> "hey"
>   b<-paste("t",a,sep="")}
>
> However, there's a catch
>
>> {cat("?"); a<-readLines(n=1)
> + "hey"
> +  b<-paste("t",a,sep="")}
> ?ada
>> b
> [1] "tada"
>
> Notice that the "hey" doesn't print.
>

-- 
Niels Richard Hansen                     Web:   www.math.ku.dk/~richard	
Associate Professor                      Email: Niels.R.Hansen at math.ku.dk
Department of Mathematical Sciences             nielsrichardhansen at gmail.com
University of Copenhagen                 Skype: nielsrichardhansen.dk	
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