R help - Oct 2013 - try to subset zoo dataset

Hi,
Try:


library(zoo)
z2<- read.zoo(text="Date WBK_Last WBK_1d_Close
2003-01-03 13.88506???? 14.08276
2003-01-06 14.11254???? 13.88506
2003-01-07 14.07033???? 14.11254
2003-01-14 14.24165???? 14.30967
2003-01-22 14.28913???? 14.30563
2003-01-29 13.95664???? 14.16483
2007-01-01 14.87033???? 15.11254
2007-01-07 14.34165???? 14.50967
2007-01-22 12.24913???? 14.80563
2008-01-29 12.95664????
14.26483",sep="",header=TRUE,FUN=as.Date,format="%Y-%m-%d")
library(xts)
?x1<- as.xts(z2)

x1["2007-01-01/2007-12-31"]
#?????????? WBK_Last WBK_1d_Close
#2007-01-01 14.87033???? 15.11254
#2007-01-07 14.34165???? 14.50967
#2007-01-22 12.24913???? 14.80563
?x1["2007-01-01/"]
#?????????? WBK_Last WBK_1d_Close
#2007-01-01 14.87033???? 15.11254
#2007-01-07 14.34165???? 14.50967
#2007-01-22 12.24913???? 14.80563
#2008-01-29 12.95664???? 14.26483


A.K.



Hi There, 

I have a zoo dataset with more 10-year daily price data. However, I only want
data from a specific date onward.

This is how my data looks like: 

? ? ? ? ? ? ? ? ?WBK_Last WBK_1d_Close 
2003-01-03 13.88506 ? ? 14.08276 
2003-01-06 14.11254 ? ? 13.88506 
2003-01-07 14.07033 ? ? 14.11254 
2003-01-14 14.24165 ? ? 14.30967 
2003-01-22 14.28913 ? ? 14.30563 
2003-01-29 13.95664 ? ? 14.16483 

However, I only want data from 2007-01-01 onward. 
I know I can use " prices[as.Date"2007-01-01"] " to find out
the
data of the starting date but I can't subset the dataset from that date. 

Thank you in advance. 
Any help will be appreciated.