On 12.12.2011 17:44, Tony Stocker wrote:
Hello,
I am dealing with data stored in a database as a 'time' object. I
export the data from the database to a text file and utilize the
'time_to_sec()'
I get
> time_to_sec
Error: object 'time_to_sec' not found
If it is in a package, please tell us which one you are referring to.
function of the database to convert the human readable
time (HH:MM:SS) to seconds so that I can use R to do analysis and
create charts of the data. I do not need or use days or dates in the
data, and the data range is from 07:00:00 to 18:00:00 or 25200-64800
seconds. However when I visualize the data in charts I do not want a
scale that runs from 25200-64800 seconds, but rather in the HH:MM:SS
format. Is there a relatively straight-forward and easy to use way to
do this?
Yes, e.g.:
t <- strptime(c("07:00:00", "18:00:00"), "%H:%M:%S")
y <- rnorm(2)
plot(t, x)
Uwe Ligges
Thanks,
Tony
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
