[R] chron and mysql

[Joel Allen]

R 0.90.1
chron 2.2-2
MySQL 3.22.30

Attempts to create a chron object fail when using date and time data
from a mysql database.   It appears that chron does not like 4 digit
years.  Is this the problem?

my data look like:

> c.time[1:10,]
         Date     Time
1  2000-02-14 10:15:02
2  2000-02-14 10:17:03
3  2000-02-14 10:18:03
4  2000-02-14 10:19:03
5  2000-02-14 10:20:04
6  2000-02-14 10:21:04
7  2000-02-14 10:22:04
8  2000-02-14 10:23:05
9  2000-02-14 10:24:05
10 2000-02-14 10:26:06

the chron command looks like:

>
time.stamp<-chron(as.character(c.time[,"Date"]),c.time[,"Time"],format=c("y/m/d","h:m:s"))

Error in convert.dates(dates., format = format[[1]], origin = origin.) :
format y/m/d may be incorrect
In addition: Warning messages:
1: 1796 entries set to NA due to wrong number of fields in:
unpaste(dates., sep = fmt$sep, fnames = fmt$periods, nfields = 3)
2: NAs introduced by coercion
3: NAs introduced by coercion
4: NAs introduced by coercion

Thanks,

Joel Allen
Institute of Applied Sciences
University of North Texas

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