On 09/29/2013 01:27 AM, Leopoldo Catania wrote:
Hi,
I really don't know what is wrong with my code, I have a character object
and I need to have a POSIXlt object; my code is:
date="Mon, 23 Sep 2013 06:45:05 GMT"
as.POSIXlt(date,format="%a, %d %b %Y %H:%M:%S %Z")
[1] NA
even with
strptime(date,"%a, %d %b %Y %H:%M:%S %Z")
[1] NA
Also if I remove "Mon," and "GMT"
date2="23 Sep 2013 06:45:05"
as.POSIXlt(date2,format="%d %b %Y %H:%M:%S")
[1] NA
strptime(date2,format="%d %b %Y %H:%M:%S")
[1] NA
If I try to run the last code line in ?strptime the result is:
## An RFC 822 header (Eastern Canada, during DST)
strptime("Tue, 23 Mar 2010 14:36:38 -0400", "%a, %d %b %Y %H:%M:%S %z")
[1] NA
Hi Leopoldo,
The %Z is only included in the format string for output. Try these:
strptime(date,"%a, %d %b %Y %H:%M:%S")
[1] "2013-09-23 06:45:05"
strptime(date,"%a, %d %b %Y %H:%M:%S",tz="GMT")
[1] "2013-09-23 06:45:05 GMT"
Jim
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