[R] Apologies : question on transforming a table

Joachim de Lezardiere joachim.lezard at gmail.com
Thu May 6 21:38:46 CEST 2010

Can you explain more about the output you want  ? 

Thank you

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Min-Han Tan
Sent: Thursday, May 06, 2010 2:28 PM
To: r-help at stat.math.ethz.ch
Subject: [R] Apologies : question on transforming a table

Dear R-help list,

Apologies. I  am trying to convert one table to another. It feels that it
should be a very straightforward answer with a single (or two) commands with
the right extensions, but I really can't figure this out right now. I have
several hundred pheno factors actually, so manually doing this line by line
is not an option.

My original table is approximately like this :

   ID         pheno
1   A Breast Cancer
2   A  Appendicitis
3   A  Microcephaly
4   B        Polyps
5   B        Autism
6   C        Autism
7   D Breast Cancer
8   D        Polyps
9   D  Appendicitis
10  E Breast Cancer

What I want is this :
    ID Breast Cancer Appendicitis Microcephaly Polyps Autism  A 1 1 1   B  1
1  C   1  D 1  1  E 1

The data is here
data <-
Cancer","Polyps","Appendicitis","Breast Cancer"))

Thank you very much! Many apologies.


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