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aneesha
2009 Aug 18
3
R formula
...)
and got the following error messege
Error in systemfit("SUR", list(demand = eqDemand, supply = eqSupply)) :
argument 'formula' must be an object of class 'formula' or a list of objects
of class 'formula'
Can anyone tell me how to overcome this problem?
regards
Anwesha
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