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=5)
x.Times<- c("00:00:00", "00:15:00", "00:30:00",
"00:45:00", "01:00:00")
x<-paste(x.Date,x.Times)
y.Date <- rep("3/1/2004",times=4)
y.Times<- c("00:00:00", "00:15:00",
"00:45:00", "01:00:00")
y<-paste(y.Date,y.Times)
fmt <- "%m/%d/%Y %H:%M:%S"
x.1<-xts(1:5, as.POSIXct(x, format=fmt))
y.1<-xts(1:4, as.POSIXct(y, format=fmt))
If possible, I'd like query the date of x.1 and use it to override the date
in y.1, leaving the times as they are. So the current output looks like
this:
x.1
# [,1]
#2004-01-01 00:00:00 1
#2004-01-01 00:15:00 2
#2004-01-01 00:30:00 3
#2004-01-01 00:45:00 4
#2004-01-01 01:00:00 5
y.1
# [,1]
#2004-03-01 00:00:00 1
#2004-03-01 00:15:00 2
#2004-03-01 00:45:00 3
#2004-03-01 01:00:00 4
But I would like change y.1 to look like the following by using the date of
x.1 (notice the month was updated to match x.1):
y.1
[,1]
2004-01-01 00:00:00 1
2004-01-01 00:15:00 2
2004-01-01 00:45:00 3
2004-01-01 01:00:00 4
Thanks, Eric
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