
Do you have multiple data points for Car/Train etc? 

And do you want to see if there are differences between in mean/medians these modes of transport?

If so explore anova, kruskal-wallis

.



> Date: Tue, 29 Nov 2011 16:57:57 +0100
> From: ligges@statistik.tu-dortmund.de
> To: falk.hilliges@twain-systems.com
> CC: r-help@r-project.org
> Subject: Re: [R] Matrix for correlation
> 
> 
> 
> On 29.11.2011 16:41, Geophagus wrote:
> > hi @ all,
> > I have problem with creating a matrix for a cor() function.
> > I try to use the cor() function on a matrix to test the correlation between
> > each value in a column.
> > Maybe like corr(x, method = xyz).
> > My x has two columns maybe like this:
> >
> > MEDIA  VALUE
> > Car      23
> > Train    26
> > Plane   25
> > Cab     22
> > Bike     15
> >
> > .... and so on.
>  >
> > Now I want to calculate the correlation between Car and Train, Car and
> > Plane, Train and Plane and so on.
> >
> 
> 
> If the above is your data, then you have indeed no clue what the word 
> "correlation" means. Please look it up in a textbook and find why you 
> cannot calculate it for this kind of data. If you do not find, please 
> ask a local statistician for help.
> 
> Uwe Ligges
> 
> 
> 
> > Sorry but I don't have a clue and I hope there is an easy way to solve my
> > problem.
> > Thanks a lot for all answers.
> >
> > Greetz Geo
> >
> >
> > --
> > View this message in context: http://r.789695.n4.nabble.com/Matrix-for-correlation-tp4119590p4119590.html
> > Sent from the R help mailing list archive at Nabble.com.
> >
> > ______________________________________________
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> > 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.
> 
> ______________________________________________
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