[R-SIG-Finance] Cross correlation problems

[wlblount]

just curious why this would not work

library(quantmod) 
getSymbols("SPY",src="google") 
getSymbols("ILF",src="google") 
getSymbols("EWZ",src="google") 
df = data.frame( dailyReturn(SPY), dailyReturn(ILF), dailyReturn(EWZ) ) 
names(df)<- c("SPY","ILF","EWZ") 
round(cor(df),2)

i assume it has to do with the "names" function.

can some one point me in the direction of... 

1 - using variables as to only have to input symbol once  

2 - how about expanding to 4 symbols (or any amount of 
symbols)

Thanks,
Bill




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