On Feb 23, 2011, at 8:55 AM, Kushan Thakkar wrote:
I am using getSymbols function from quantmod package to get price
data from
internet.
Currently I have:
my.ticker <- "IBM"
getSymbols(my.ticker,src="google")
This creates an xts object named my.ticker which contains
historical price
data for IBM.
How can I call and manipulating this xts object using my original
string
my.ticker?
I want to do:
colnames(my.ticker) <- c("open","high","low","close","vol")
If you want to change the colnames (an attribute) of the object now
named "IBM" in your global environment, then look a:
?attributes
?attr
However, this does not work as my.ticker refers to the string "IBM"
rather
than the xts object called IBM.
Out of desperation, I have also tried:
colnames(paste(my.ticker)) <- c("open","high","low","close","vol")
colnames(as.xts(my.ticker)) <- c("open","high","low","close","vol")
But why are you do this??? It already has a perfectly servicable set
of names:
> colnames(get(my.ticker))
[1] "IBM.Open" "IBM.High" "IBM.Low" "IBM.Close" "IBM.Volume"
--
David.
Thanks
Kushan
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