On Wed, 12 Nov 2008, [EMAIL PROTECTED] wrote:
Dear R users,
I have the joined txt file in the following direct directory C://
I have written the following lines:
library(urca);
PIBTUN<-read.table("C:/AF.txt", header=F);
ur.df(PIBTUN,type='none',lags=1)
but I have obtained the following message:
Error in embed(z, lags) : 'x' is not a vector or matrix
I don't What's the problem,
The problem is that you haven't read the help page. The first argument of
ur.df() should be a vector but you supply a data.frame. As your data just
contains a single column, you probably want
PIBTUN <- PIBTUN[,1]
which stores the data as a vector. After that the ur.df() call above
should work.
Z
can you please help me
Thank you in advance
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