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getlast
2013 Jan 24
1
how should I make the optional arguments in r?
HI,
I guess I did sth wrong with the optional argument in the program. but I don't know how should I make it.
in my main program:
source("getelasticity_overPB.r")
crossprice<-getelasticity(mydata,mydatao,"nest")$cross_p
is same with
crossprice<-getelasticity(mydata,mydatao)$cross_p
I don't know why????
In ""getelasticity_overPB.r":
I have the function:
getelasticity=function(mydata,mydatao,method=NUL...