how can I keep the date info after doing unlist to a list of dates? I have a list of dates were observations were made for each station in each month list.obs[[station]][month] [1] "1979-01-01" "1979-01-10" "1979-01-25" [1] 0 1 2 3 when i try to unlist i loose the date info. what am I doing wrong?
unlist() list of dates
3 messages · William Dunlap, Ana
There are methods of the "c" function for things of class "POSIXlt" and "Date"
so do.call("c", dataList) works instead of unlist:
> dateList <- list(LastWeekend=as.POSIXlt(sprintf("2011-12-%d", 10:11)),
+ Today=as.POSIXlt("2011-12-12"))
> z <- do.call("c", dateList)
> z
LastWeekend1 LastWeekend2 Today
"2011-12-10 PST" "2011-12-11 PST" "2011-12-12 PST"
> str(z)
POSIXlt[1:3], format: "2011-12-10" "2011-12-11" "2011-12-12"
- attr(*, "names")="LastWeekend1" "LastWeekend2" "Today"
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
-----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Ana Sent: Monday, December 12, 2011 9:03 AM To: r-help at r-project.org Subject: [R] unlist() list of dates how can I keep the date info after doing unlist to a list of dates? I have a list of dates were observations were made for each station in each month list.obs[[station]][month] [1] "1979-01-01" "1979-01-10" "1979-01-25" [1] 0 1 2 3 when i try to unlist i loose the date info. what am I doing wrong?
______________________________________________ R-help at 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.
Thanks!
Another question also related to the same type of files:
How can I transform it into a time series
as.ts()
I also endup having the same problem, the dates are transformed into a
list of numbers
My file looks like this
dates val
1 2001-01-12 1.2
2 2001-02-12 1.2
2 2001-03-12 1.2
(...)
class: data.frame
On Mon, Dec 12, 2011 at 6:30 PM, William Dunlap <wdunlap at tibco.com> wrote:
There are methods of the "c" function for things of class "POSIXlt" and "Date"
so do.call("c", dataList) works instead of unlist:
?> dateList <- list(LastWeekend=as.POSIXlt(sprintf("2011-12-%d", 10:11)),
?+ ? ? ? ? ? ? ? ? ?Today=as.POSIXlt("2011-12-12"))
?> z <- do.call("c", dateList)
?> z
? ? ?LastWeekend1 ? ? LastWeekend2 ? ? ? ? ? ?Today
?"2011-12-10 PST" "2011-12-11 PST" "2011-12-12 PST"
?> str(z)
? POSIXlt[1:3], format: "2011-12-10" "2011-12-11" "2011-12-12"
? - attr(*, "names")="LastWeekend1" "LastWeekend2" "Today"
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
-----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Ana Sent: Monday, December 12, 2011 9:03 AM To: r-help at r-project.org Subject: [R] unlist() list of dates how can I keep the date info after doing unlist to a list of dates? I have a list of dates were observations were made for each station in each month list.obs[[station]][month] [1] "1979-01-01" "1979-01-10" "1979-01-25" [1] ? ? 0 ? ? 1 ? ? 2 ? ? 3 when i try to unlist i loose the date info. what am I doing wrong?
______________________________________________ R-help at 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.