[R] Add column from other columns data.

[Sarah Goslee]

Assuming you actually have a data frame or matrix, and not a csv file, ifelse() is the general solution to your problem.

Sarah

On May 14, 2012, at 8:45 AM, Yellow <s1010265 at student.hsleiden.nl> wrote:

> Hi everyone, 
> 
> I am having some problems with making a new colomn wit data in it. 
> I have this one column named: Fulfilled
> 
> Fulfilled 
> 1
> 1
> 0
> 1
> 1
> 1
> 1
> 0
> 0
> 1
> 
> And now I would like to add another colum to my .csv file ("Finished")
> 
> In this "Finished" column I would like to have "Yes" or "No". 
> Where in colomn "Fullfilled" is a 1, "Finished" should have a "Yes". 
> Like this: 
> 
> Fullfilled Finished 
> 1 Yes 
> 1 Yes 
> 0 No 
> etc 
> 
> Now I know how to grab the data out of a column, and also know how to save
> data inside a .csv file. 
> That is no problem. 
> But how do I get the right Yes or No on the right place in the other column? 
> 
> # Get al values: 1 
> Fullfilled_1 = Fullfilled[Fullfilled = 1]
> 
> I was thinkng about subset. 
> But I don' t realy know if that would be realy it.... 
> 
> Maybe somebody here can push me a little in the right direction? 
> 
> 
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