Re: [R] sum with times

2010-12-20 Thread Martin Maechler
> "RRJ" == Ronaldo Reis Junior > on Sun, 19 Dec 2010 12:10:54 -0200 writes: RRJ> Hi, Forget, the chron package work with this No, don't forget, rather solve the problem: Date / dateTime classes are "native R entities"; extension package 'chron' objects are not. ___

[R] sum with times

2010-12-19 Thread Ronaldo Reis Junior
Hi, Forget, the chron package work with this Thanks Ronaldo -- 8ª lei - Colete seus dados hoje como se você soubesse que seu equipamento vai quebrar amanhã. --Herman, I. P. 2007. Following the law. NATURE, Vol 445, p. 228. > Prof. Ronaldo Reis Júnior | .''`. UNIMONTES/DBG/L

[R] sum with times

2010-12-19 Thread Ronaldo Reis Junior
Hi, I have this vector: > A <- c("00:00:36","00:02:18") > A [1] "00:00:36" "00:02:18" I use as.difftime to convert this to time vector based > B <- as.difftime(A) > B Time differences in secs [1] 36 138 attr(,"tzone") [1] "" Now i try to make a sum > sum(B) Time difference of 174 secs