If your dataset contains integer or limited possible unique numbers only I find the
following more concise.
m <- matrix( rpois(60, 5), nc=6 )
apply( m , 2, function(x) table( factor(x, levels=0:max(m))) )
If your dataset has continous or lots of unique numbers you may wish to consider only
the summary statistics. You can try the function stats() or graphically bplot() [both
from library fields]
Regards, Adai.
-----Original Message-----
From: [EMAIL PROTECTED] on behalf of Eric Lecoutre
Sent: Thu 18/12/2003 16:22
To: Perez Martin, Agustin; lista R help (E-mail)
Cc:
Subject: Re: [R] Summaries
Have a look at 'table'
To compute for all columns of your dataset, combine with 'apply':
> data(iris)
> apply(iris,2,table)
[...]
$Petal.Width
0.1 0.2 0.3 0.4 0.5 0.6 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2
2.3 2.4 2.5
5 29 7 7 1 1 7 3 5 13 8 12 4 2 12 5 6 6
3 8 3 3
$Species
setosa versicolor virginica
50 50 50
Eric
At 09:18 18/12/2003, Perez Martin, Agustin wrote:
>Hello UseRs:
>
>Excuses for my english.
>I have a dataset with 65000 records and I'd like to make a summary where I
>can view all the values (with the number of times that it repeats) that
>there are each column of my dataset.
>I tried with summary( ), str( ), but nothing gives me the result that I am
>loking for.
>
>Thank you very much.
>
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--------------------------------------------------
L'erreur est certes humaine, mais un vrai dÃsastre
nÃcessite un ou deux ordinateurs. Citation anonyme
--------------------------------------------------
Eric Lecoutre
Informaticien/Statisticien
Institut de Statistique / UCL
TEL (+32)(0)10473050 [EMAIL PROTECTED]
URL http://www.stat.ucl.ac.be/ISpersonnel/lecoutre
<http://www.stat.ucl.ac.be/ISpersonnel/lecoutre>
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