[R] Selection with changing number of columns

[Kunzler, Andreas]

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
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E-Mail: a.kunzler at bzaek.de