[R] Delta in time series

[koj]

koj wrote:
> 
> Hi all,
> 
> I have time data in the following format:
> 
> 2009-03-09 12:00:00
> 2009-03-09 13:30:00
> 
> Now I want to compute the delta between the two time points, which results
> in this example in 1,5 h. I tried this via "ts" and the related functions
> but so far without sucess. Can anybody help me?
> 
> Thank you very much in advance.
> 
> 
> 
> 

Probably this is of interest for another users: I`ve found a solution, which
computes the delta:

(test<-strptime(c(jens1$Z_Zeit[1], jens1$Z_Zeit[2]),"%Y-%m-%d %H:%M:%S",
tz="EST5EDT"))
class(test)
difftime(test[2],test[1],units="hours",tz="EST5EDT")

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