[R] test multiple objects for being equal length

[BXC (Bendix Carstensen)]

not that its much shorter:

length( table( sapply( list(x,y,z), length ) ) ) == 1

Bendix
----------------------
Bendix Carstensen
Senior Statistician
Steno Diabetes Center
Niels Steensens Vej 2
DK-2820 Gentofte
Denmark
tel: +45 44 43 87 38
mob: +45 30 75 87 38
fax: +45 44 43 07 06
bxc at steno.dk
www.biostat.ku.dk/~bxc
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> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Manuel 
> Gutierrez
> Sent: Thursday, December 09, 2004 9:09 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] test multiple objects for being equal length
> 
> 
> I could not find any help pages on How to test many
> objects for being of equal length
> Something like identical for more than two objects?
> x<-1:6
> y<-1:10
> z<-3:5
> ## For two objects I can do:
> identical(length(x),length(y))
> ## For more than two I currently can do: 
> length(unique(c(length(x),length(y),length(z))))==1
> 
> but there must be a better way.
> Thanks,
> M
> 
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