[R] detect subset in series

[David Winsemius]

On Nov 16, 2011, at 8:25 AM, threshold wrote:

> Dear R Users, I am curious whether there is any simple solution o my  
> problem.
>
> My example 'series':
> series <- c(1,1,1,0,1,0,0,1,1,0,0,0,0,1)
>
> My 'subset' of interest:
> subset <- c(0,0,0,0)
>
> Is there any function which tells me that the subset exists in my  
> series,
> and gives me position where in series is starts. In provided example  
> the
> subset exists and covers the elements 10:13 of the 'series'.

?rle
?cumsum   # may be needed to accumulate the number of postions before  
the rle$lengths criterion is first met.

-- 

David Winsemius, MD
West Hartford, CT