Re: [R] override date in xts time series

2012-11-03 Thread arun
T" #[5] "2004-01-04 02:30:00 GMT" "2004-01-04 03:30:00 GMT"  index(y.1)<-update(index(y.1),month=unique(month(index(x.1))))   y.1 #            [,1] #2004-01-04 01:15:00    1 #2004-01-04 01:30:00    2 #2004-01-04 01:45:00    3 #2004-01-04 02:00:00    4 #2004-01-04

Re: [R] override date in xts time series

2012-11-03 Thread arun
4 #2004-01-07 02:30:00    5 #2004-01-07 03:30:00    6 Hope it helps. A.K. From: Eric Morway To: arun Cc: R help Sent: Saturday, November 3, 2012 12:32 PM Subject: Re: [R] override date in xts time series Sys.setenv(TZ="GMT") did the trick!  Th

Re: [R] override date in xts time series

2012-11-03 Thread Eric Morway
Sys.setenv(TZ="GMT") did the trick! Thank you very much. I'll continue to work the larger problem with this option. Out of curiosity, however, can the following code be modified so that the replacement argument is informed by the month of x.1?: index(y.1)<-as.POSIXct(gsub("(.*\\-).*(\\-.*)","

Re: [R] override date in xts time series

2012-11-03 Thread Eric Morway
Hello Arun, I too am using R 2.15 and am unable to get the same result as you. You will notice in the R code that follows that when I use 'update' the time in the xts object goes haywire. For example, "2004-04-04 01:15:00 EST" gets converted to "2004-01-03 22:15:00 PST" (see below). Because

Re: [R] override date in xts time series

2012-11-02 Thread arun
1-04 02:30:00    5 #2004-01-04 03:30:00    6 I hope this helps. A.K. ____ From: Eric Morway To: arun Cc: R help Sent: Friday, November 2, 2012 8:52 PM Subject: Re: [R] override date in xts time series Hello Arun,   My earlier example was not very robus

Re: [R] override date in xts time series

2012-11-02 Thread Eric Morway
can use: library(lubridate) index(y.1)<-update(index(y.1),month=1) #or index(y.1)<-update(index(y.1),month=unique(month(index(x.1)))) y.1 [,1] #2004-01-01 00:00:001 #2004-01-01 00:15:002 #2004-01-01 00:45:003 #2004-01-01 01:00:004 A.K. - Original

Re: [R] override date in xts time series

2012-11-02 Thread arun
2004-01-01 01:00:00    4 A.K. - Original Message - From: Eric Morway To: r-help@r-project.org Cc: Sent: Friday, November 2, 2012 7:55 AM Subject: [R] override date in xts time series   Using  the  following  bit  of  R,  I'm wondering if there is a way to   override/manipulate/replace the

Re: [R] override date in xts time series

2012-11-02 Thread arun
4 A.K. - Original Message - From: Eric Morway To: r-help@r-project.org Cc: Sent: Friday, November 2, 2012 7:55 AM Subject: [R] override date in xts time series   Using  the  following  bit  of  R,  I'm wondering if there is a way to   override/manipulate/replace the date in one xts time seri

[R] override date in xts time series

2012-11-02 Thread Eric Morway
Using the following bit of R, I'm wondering if there is a way to override/manipulate/replace the date in one xts time series with the date of another xts time series while not affecting/changing the times of the xts time series? library(xts) x.Date <- rep("1/1/2004",times=