[R] how to find the location of the first TRUE of a logical vector

Roger Peng rpeng at stat.ucla.edu
Wed Mar 5 23:19:54 CET 2003


Try,

x <- c(F,F,F,T,F,T,F,T)
min(which(x))

-roger
_______________________________
UCLA Department of Statistics
rpeng at stat.ucla.edu
http://www.stat.ucla.edu/~rpeng

On Wed, 5 Mar 2003, Jason Liao wrote:

> without having to check the vector element by element? Thanks a lot!
> 
> Jason
> 
> =====
> Jason G. Liao, Ph.D.
> Division of Biometrics
> University of Medicine and Dentistry of New Jersey
> 335 George Street, Suite 2200
> New Brunswick, NJ 08903-2688
> phone (732) 235-8611, fax (732) 235-9777
> http://www.geocities.com/jg_liao
> 
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