[R] class of strptime() output

[Jinsong Zhao]

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(...). I am wondering why the class of a and 
b[1,1] are not the same.

Best,
Jinsong