class of strptime() output
On Jan 5, 2015, at 5:47 PM, Jinsong Zhao wrote:
On 2015/1/5 17:28, Ben Bolker wrote:
Jinsong Zhao <jszhao <at> yeah.net> writes:
In the following code snippet,
#
a <- strptime("121114 0510", "%m%d%y %H%M")
b <- data.frame(date = a, res = 1:5)
class(a)
class(b[1,1])
#
I am wondering why the class of a and b[1,1] are not the same.
How to make the class of a and b[1,1] to be same?
How about a <- as.POSIXct(strptime(...)) ? (See ?POSIXct)
Thanks a lot. I have used as.POSIXct(...).
You may have "used" it, but you don't show any code. I can think of several ways you could have _thought_ you "used it" but failed to make any changes to the underlying objects. For instance you could have executed this code: as.POSIXct(a) Which would produce console output but have no effect on 'a'.
I am wondering why the class of a and b[1,1] are not the same.
We are wondering as well. What did you do?
David Winsemius Alameda, CA, USA