The treatment of dates seems to be a little inconsistent in R 2.11.1
(2010-05-31):
[1] The choice of origins?
> as.integer(as.Date("1970-01-01"))
works and assumes as origin 1970-01-01. However,
> as.Date(1)
does not work. It requires an origin (as.Date(1,
origin="1970-01-01")). If we set a default origin in the former, it
should probably work when the input is an integer rather than a
string, too.
[2] How do dates on axes work?
> plot( c(as.Date(1:20, origin="1970-01-01")), 1:20 )
> axis( side=3, c(as.Date(1:20, origin="1970-01-01")))
The lower axis is drawn from the plot() with dates. The upper axis
from axis() is drawn with numbers, not dates.
(PS: Is there an easier way to tell R that I want a whole lot more
tick marks and/or labels than what it gives me by default?)
regards,
/iaw
----
Ivo Welch (ivo.we...@brown.edu, ivo.we...@gmail.com)
______________________________________________
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.
