[R] Split comma separated list

David Winsemius dwinsemius at comcast.net
Tue Dec 8 22:03:14 CET 2009


Two questions:

What is your code?

What do you get with:
 > options()$dec
decimal_point
           "."

--  
David

On Dec 8, 2009, at 3:55 PM, Gaurav Moghe wrote:

> Hi all,
>
> I'm a beginner user of R. I am stuck at what I thought was a very  
> obvious
> problem, but surprisingly, I havent found any solution on the forum or
> online till now.
>
> My problem is simple. I have a file which has entries like the  
> following:
> #ID       Value1            List_of_values
> ID1          0.342             0.01,1.2,0,0.323,0.67
> ID2         0.010              0.987,0.056,1.3,1.5,0.4
> ID3         0.146              0.1173,0.1494,0.211,0.1257
> ...
> ...
>
> I want to split the third column (by comma) into individual values  
> and put
> them in a variable so that I can plot a boxplot with those values, one
> boxplot per row . I have been having three issues:
> 1) R identifies the third column as an integer, instead of a list of  
> lists
> 2) I havent been able to split the third column into individual values
> 3) How do I get it in a format suitable for plotting a boxplot?
>
> Any suggestions? I'd really appreciate any help on this.
>
> Thank you,
> Gaurav
>
> 	[[alternative HTML version deleted]]
>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT




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