[R] Selection with changing number of columns

[Peter Alspach]

Tena koe Andreas

Assuming you mean

d[d$Var.1==9 | d$Var.2==9 | d$Var.3==9  ,]

not

d[d$Var.1==9 | d$Var.1==9 | d$Var.1==9  ,]

then

d[apply(d, 1, function(x) any(x==9)),]

is one way.

HTH ....

Peter Alspach

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Kunzler, Andreas
> Sent: Tuesday, 6 July 2010 8:34 p.m.
> To: r-help at r-project.org
> Subject: [R] Selection with changing number of columns
> 
> Dear list,
> 
> I'm looking for a way to select rows of a data.frame with changing
> number of columns (constraint) involved.
> 
> Assume a data (d) structure like
> 
> 
> Var.1 Var.2 Var.3
> 9	2	1
> 2	9	5
> 1	2	1
> 
> I know the number of involved columns.
> 
> Is there a way to generate the following selection automatically (maybe
> for loop), so that it makes no difference if there are two or ten
> columns involved.
> 
> Selection:
> d[d$Var.1==9 | d$Var.1==9 | d$Var.1==9  ,]> 
> 
> Does anybody know a way?
> 
> Thanks
> 
> Mit freundlichen Grüßen
> 
> Andreas Kunzler
> ____________________________
> Bundeszahnärztekammer (BZÄK)
> Chausseestraße 13
> 10115 Berlin
> 
> Tel.: 030 40005-113
> Fax:  030 40005-119
> 
> E-Mail: a.kunzler at bzaek.de
> 
> ______________________________________________
> R-help at 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.