On 16.11.2012 01:19, arun wrote:


Hi,

If you want to convert from the first way to the second way suggested by Jean:
[...]



A.K.



----- Original Message -----
From: Jean V Adams <jvad...@usgs.gov>
To: Florian Ahrweiler <florian.ahrwei...@uni-wh.de>
Cc: r-help@r-project.org
Sent: Thursday, November 15, 2012 2:50 PM
Subject: Re: [R] Adding two different factors to one observation?

Florian,

There are a number of different ways to handle data like this.  Two that
come to my mind are shown below.  You could allow each observation to be
represented by multiple rows in the data frame:
[...]

Or you could let each level be its own variable:

   obs cup plate saucer
1   1   0     0      1
2   2   1     1      1
3   3   1     1      0
4   4   1     0      1
5   5   0     0      0
6   6   0     1      1
7   7   0     1      0
8   8   1     0      0

The arrangement that you choose will likely depend on what you want to do
with the data.

Jean

Dear Jean,
dear arun

Thank you very much for your help. I could develop a strategy for my taks from it. I'll do it like this: I concentrate the 30+ categories I have and convert them into three variables; then I take the second solution with

        saucer  plate   cup
1       0       1       1
2       1       0       0
3       0       1       0
4       1       0       1

and so on.

Again, thanks a lot!

Florian

Arzt
Doktorand

Integriertes Begleitstudium für anthroposophisch erweiterte Medizin
Zentrum für Integrative Medizin
Department für Humanmedizin
Fakultät für Gesundheit
Universität Witten/Herdecke

physician
dissertation student

Integrated Curriculum for Anthroposophic Medicine
Centre for Integrative Medicine
School of Medicine
Faculty of Health
Witten/Herdecke University

______________________________________________
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.

Reply via email to