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Re: st: xtserial error: "no observations"


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: xtserial error: "no observations"
Date   Mon, 8 Apr 2013 15:44:21 +0100

You need to tell us more about exactly what you typed and the
incidence of missing values.

In addition, note that -xtserial- is user-written, so that you are
expected to explain that and say where it comes from.

I doubt that having 386 observations is itself a problem.

Nick
njcoxstata@gmail.com

On 8 April 2013 15:34, Rodrigo Badilla <rodrigo.badilla@gmail.com> wrote:

> Thanks for you reply and information, i did checked my variables and
> are not strings... probably the missing values could be the answer...
>
> anyway i have been read that autocorrelation test with xtserial should
> be used with panel data with a large number of data, could be this in
> relation with my problem ( i have only 386 samples)

2013/4/8 Nick Cox <njcoxstata@gmail.com>:

>> This typically means that
>>
>> either some variable you think is numeric is really string
>>
>> or some variable contains missing values, prohibiting some calculation.
>>
>> We can't say more without knowing more about your data.

On 8 April 2013 13:52, Rodrigo Badilla <rodrigo.badilla@gmail.com> wrote:

>>> I am triying to run a autocorrelation tests with xtserial command,
>>> lamentably only get this error output: "no observations" previously i
>>> set my data with xtset command, my data set have 386 samples.
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