[R] Sorting Data?

[Martin Klaffenboeck]

Am 27.05.2004 22:11:04 schrieb(en) Berton Gunter:
>  Your question does not make a lot of sense to me. If you only want  
> to  compute  distances between mothers and THEIR daughters, you  
> cannot have a  matrix, because  different mothers have different  
> numbers of daughters.

Thats true, but we took only one mother and one daugther in our sample,  
so in this sample we have only on daugther from one mother.

>  Do you want to  define the  distance between a mother and someone  
> else's daughter as 0 or INF ?  Do  you want  to show that mothers and  
> their daughters are more similar then  mothers  and  someone else's  
> daughters?

Thats my question, yes. ;-)

>  You either need to think about what you wish to do more carefully or   
> express it  more carefully. At least for me. Maybe someone else will  
> understand  you better.

Sorry, its the first time for me to talking about statistics in english  
and so I have to learn to express it better.

Martin





> -- Bert
> 
> Martin Klaffenboeck wrote:
> 
> > Hello,
> >
> > Im reading through some manuals, but I cannot find my answer.
> >
> > I have a file containing many data:
> >
> > Vpn     Code    Family  Age     F1      F2      ...     F17
> > 1       1       M       46      1       2       ...     1
> > 2       1       D       18      3       2       ...     4
> > 3       2       M       50      3       3       ...     3
> > ...
> > and so on.
> >
> > Now I can read it by:
> >
> > F = read.table("file", header=T)
> >
> > but now I want to seperate the mothers (M) and daugthers (D) of the
> > family with all the data in all other fields.  How can I do that?
> >
> > The 'Code' Tells me which mother belongs to which dougther.  I want
> to
> > make a matrix where I have the mothers on one and the daugthers on
> the
> > other axis and compair the distance of every question (F1...F17)  
> and
> > the distance of the sum of this questions.  The questions are
> semantic
> > differencials, 5 values.  F4, and F7 must have reverse polarity in
> this
> > case.
> >
> > Hm.  How do I have to do now?
> >
> > Thanks,
> > Martin
> >
> > ______________________________________________
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> 
> --
> 
> Bert Gunter
> 
> Non-Clinical Biostatistics
> Genentech
> MS: 240B
> Phone: 650-467-7374
> 
> 
> "The business of the statistician is to catalyze the scientific
> learning
> process."
> 
>  -- George E.P. Box
> 
> 
> 
> 
>