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st: RE: ERROR: sample may not include multiple panels
From
"Nick Cox" <[email protected]>
To
<[email protected]>
Subject
st: RE: ERROR: sample may not include multiple panels
Date
Fri, 6 Aug 2010 15:18:41 +0100
To Stata, a panel is an identifier variable which, together with a time
variable, defines a panel dataset. Thus to Stata your variable -model-
defines panels: as far as it is concerned you said so yourself.
Nick
[email protected]
Hobst
i defined my paneldata using the following code
encode model, gen(numeric_model)
gen datevar=monthly(month,"M20Y")
format datevar %tm
sort numeric_model datevar
xtset numeric_model datevar
Now, if i want to make tests such as xcorr, as or dfuller i get the
following error message:
"sample may not include multiple panels"
Has anybody got an idea why i get this error? Where does stata see the
"multiple panels"?
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