Hello Guys, thank you all very much for the help!

Sorry for my total lack of knowledge in R... so I did the correlation.. and
got these results:

> cor(A, C, method = "spearman")
>[1] 0.4922165
> cor(B, C, method = "spearman")
>[1] 0.1922412
> cor(A, B, method = "spearman")
> [1] -0.00889328

I don't know how to interpret them... so the correlation is good when it is
really close to 1 or to 0? What about negative correlation??

Cheers,
--
David Nemer


On Sat, Apr 10, 2010 at 2:58 PM, Gabor Grothendieck <ggrothendieck@gmail.com
> wrote:

> Try this:
>
> > A <- c("file1.java", "file3.java", "file2.java")
> > B <- c("file2.java", "file4.java", "file1.java")
> > cor(A, B, method = "spearman")
> [1] 0.5
>
>
> On Fri, Apr 9, 2010 at 11:22 AM, David Nemer <davidnemer@gmail.com> wrote:
> > Hey Everyone,
> >
> > Im fresh new in R, and Im supposed to write a code to give me a
> correlation
> > between two rankings. So I have two ranking lists, which contain file
> names,
> > e.g.:
> >
> > Ranking list 1:
> > file1.java
> > file3.java
> > file2.java
> >
> > Ranking list 2:
> > fiile2.java
> > file4.java
> > file1.java
> >
> > I need to see how much are these two ranking lists are alike, get a
> > correlation between them. I dont even know where to start. Can anyone
> bring
> > me some light or tips? Thank you in advance.
> >
> > Cheers,
> > --
> > David Nemer
> >
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@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.
> >
>

	[[alternative HTML version deleted]]

