
 

this command is used in tseries 

adf.test(x, alternative = c("stationary", "explosive"),

         k = trunc((length(x)-1)^(1/3)))

this command apply adf test on data given in x .here general 

equatiuon 

that is, equation with constant and trend is used.if i did not include 

constant or trend in the equation and run the

command then how i can run this command in tseries.

 
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