redenominate: Redenominate (change the base of) an instrument
In redmode/FinancialInstrument: Financial Instrument Model Infrastructure for R

Description Usage Arguments Details Value Note Author(s) See Also Examples

Redenominate (change the base of) an instrument

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  redenominate(x, new_base = "USD", old_base = NULL,
    EOD_time = "15:00:00", env = .GlobalEnv,
    silent = FALSE)

`x`	can be either an xts object or the name of an instrument.
`new_base`	change the denomination to this; usually a currency.
`old_base`	what is the current denomination?
`EOD_time`	If data need to be converted to daily, this is the time of day to take the observation.
`env`	environment that holds the data
`silent`	silence warnings?

If old_base is not provided, x must be the name of an instrument (or an object with the name of a defined instrument) so that the currency attribute of the instrument can be used. Otherwise, old_base must be provided.

If you want to convert to JPY something that is denominated in EUR, you must have data for the EURJPY (or JPYEUR) exchange rate. If you don't have data for EURJPY, but you do have data for EURUSD and USDJPY, you could redenominate to USD, then redenominate to EUR, but this function is not yet smart enough to do that for you.

See the help for buildRatio also.

xts object, with as many columns as practicable, that represents the value of an instrument in a different currency (base).

this does not yet define any instruments or assign anything.

Garrett See

buildRatio

## Not run: 
require(quantmod)
EURUSD <- getSymbols("EURUSD=x",src='yahoo',auto.assign=FALSE)
GLD <- getSymbols("GLD", src='yahoo', auto.assign=FALSE)
GLD.EUR <- redenominate(GLD,"EUR","USD") #can call with xts object

currency("USD")
stock("GLD","USD")
GLD.EUR <- redenominate('GLD','EUR') #can also call with instrument name

## End(Not run)