@Scott:

I can't just use

colnames(IBM) <- c("open","high","low","close","vol")


I have nearly 100 tickers stored in an vector and I am looping through them.
Its not a good idea to hardcode all of them.

@David:
Column names is just an example. I have a long script that takes in an xts
object and performs a series of manipulation. I want to to be able to run
the same program on a series of xts objects through a loop. For that I need
to be able to able to dynamically point/refer to those xts object inside my
loop.


On Wed, Feb 23, 2011 at 8:58 AM, David Winsemius <dwinsemius@comcast.net>wrote:

>
> 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
>>
>>        [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@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.
>>
>
> David Winsemius, MD
> West Hartford, CT
>
>

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