Full_Name: Zeng, zhenxing
Version: 2.7.1 (2008-06-23)
OS: windows XP
Submission from: (NULL) (158.182.1.30)
Dear Author
I have run into a trouble in using chron package
The data frame: a
date time_fut expiry_day bid ask trade_day
1 2004-09-01 09:45:00 2004-10 12860 12889 38
2 2004-09-01 09:45:01 2004-10 12885 12890 38
3 2004-09-01 09:45:04 2004-10 12883 12887 38
4 2004-09-01 09:45:05 2004-10 12878 12886 38
5 2004-09-01 09:45:06 2004-10 12881 12887 38
6 2004-09-01 09:45:08 2004-10 12881 12882 38
7 2004-09-01 09:45:11 2004-10 12881 12884 38
8 2004-09-01 09:45:12 2004-10 12882 12884 38
9 2004-09-01 09:45:14 2004-10 12882 12883 38
I use the package chron
a$time_fut<-times(a$time_fut)
a$date<-as.Date(a$date)
a$expiry_day<-as.character(a$expiry_day)
any(am$time_fut[2]==(am$time_fut[1]+times("00:00:01")))
the answer: True
any(a$time_fut[5]==(a$time_fut[4]+times("00:00:01")))
[1] TRUE
any(am$time_fut[4]==(am$time_fut[3]+times("00:00:01")))
the answer: False
But, the right answer should be true
I don't know why, I am using the R version: 2.7.1
attached please find the data.
Thank you
Best wishes
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