[R-SIG-Finance] Removing Effect of Macroeconomic Variables from Time Series

[Pankaj K Agarwal]

Dear All
This question may sound weakly relevant/rudimentary in this group but any help would be invaluable. I am trying to modify a time series of market volume/trading etc. data and would like to remove the effect of macroeconomic variables like interest rates and inflation removed. 
Could someone please advise how is this performed?
Regards,Pankaj K Agarwal
+91-98397-11444http://in.linkedin.com/in/pankajkagarwal/
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