Re: st: Problem declaring a panel dataset

[Roberto Liebscher <roberto.liebscher@ku.de>]

Have you tried to use the clocktime option when typing your xtset command?

xtset panelvar timevar, clocktime

Another opportunity to check for duplicates is to use the duplicates 
command which may show duplicates your command does not bring up:
duplicates list panelvar timevar

Hope this helps,
Roberto

Am 30.08.2013 13:18, schrieb Milena Przheska:
> Dear Statalist members,
>
> I am getting the following error when declaring a panel dataset:
>
> "repeated time values within panel"
>
> I have checked for duplicate records using the following command:
>
> bys code when: gen dup = cond(_N==1,0,_n)
>
> I get this description of duplicates with -tab-
>
>         dup |      Freq.     Percent        Cum.
> ------------+-----------------------------------
>            0 |    164,787       91.61       91.61
>            1 |      7,241        4.03       95.63
>            2 |      7,241        4.03       99.66
>            3 |        499        0.28       99.93
>            4 |         71        0.04       99.97
>            5 |         18        0.01       99.98
>            6 |         14        0.01       99.99
>            7 |          8        0.00      100.00
>            8 |          8        0.00      100.00
> ------------+-----------------------------------
>        Total |    179,887      100.00
>
>
> But when I listed duplicates, this is what I could see:
>
>
> list if dup>1
>
>   when                                code     dup
> 28apr2013 08:20:55               a          2
> 28apr2013 08:21:06               a          2
> 04may2013 10:44:43             a          2
> 04may2013 10:45:28             a          2
>
>
> The variable "when' is in %tc format, and I use the same format when
> declaring a panel dataset. Yet, Stata seems to only look at the date,
> not the hour, minute and seconds part of the variable.
>
> Can anyone please tell me what can I do to correct this situation?
>
> I appreciate your help and I thank you in advance.
>
>
> Best,
> Milena Przheska
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