[Rd] lag (PR#491)

[kthaka@uta.fi]

Full_Name: Hannu Kahra
Version: 1.0.0
OS: Windows
Submission from: (NULL) (153.1.50.127)


x1 <- lag(x, k=1) returns the original series x. The time series is not
shiftet at all. Only the time is shiftet: for x1 new start = old start -1 
and new end = old end -1. When I run, e.g. lm(x~x1) the result is not what
I expect. Both x and x1 are time series. Is this a bug or am I forgetting
something?

Regards
Hannu Kahra 

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