[R] Changing Attribute With Paste

Sparks, John James jspark4 at uic.edu
Sat May 14 10:14:00 CEST 2011


Dear R Helpers,

I am trying to adjust the attribute of an R object pulled from quantmod. 
Since I want to do this for many such objects, I was trying to make the
adjustment programmatic.  Unfortunately, I am having a huge amount of
trouble using attr in combination with paste (and perhaps get, and perhaps
assign, none of which seem to help).  When I hard-code the change it works
fine.  Your help would be much appreciated.


require(quantmod)
getFin("NYSE:A")

attr(NYSE.A.f,"symbol")<-"A"  #works fine

ticker<-"A"
attr(paste("NYSE.",ticker,".f",sep=""),"symbol")<-"A"         #doesn't work
attr(get(paste("NYSE.",ticker,".f",sep="")),"symbol")<-"A"    #nor does
this, nor the hundred other combinations I have tried

Best wishes,
--John J. Sparks, Ph.D.



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