"Say exactly what you typed and exactly what Stata typed (or did) in
response. N.B. exactly!" (Statalist FAQ
http://www.stata.com/support/faqs/res/statalist.html)
You do not have strictly time series date by panel data, so you will need to
-tsset name date-
Perhaps this example will help:
clear
input str6 week str5 name
2003w1 name1
2003w1 name2
2003w1 name3
2003w2 name1
2003w2 name2
2003w2 name3
2003w3 name1
2003w3 name2
2003w3 name3
2003w4 name1
2003w4 name2
2003w4 name3
2003w5 name1
2003w5 name2
2003w5 name3
2003w6 name1
2003w6 name2
2003w6 name3
end
gen sales = uniform()
gen date = weekly(week, "yw")
format date %tw
encode name , gen(id)
tsset id date
levelsof name, local(levels)
foreach l of local levels {
arima sales if name == "`l'", ar(1) nolog
}
Scott
> -----Original Message-----
> From: [email protected] [mailto:owner-
> [email protected]] On Behalf Of Michael Crain
> Sent: Thursday, April 12, 2007 8:56 PM
> To: [email protected]
> Subject: st: RE: Time series analysis by subsets within data set
>
> Thank you, Scott, but I cannot get the TSSET set in the first place. When
> I
> issue the TSSET command, I get an error message "repeated time values in
> sample."
>
> An example of my data set (using weekly data) looks like this:
>
> 2003w1 (customer name 1) (amount)
> 2003w1 (customer name 2) (amount)
> 2003w1 (customer name 3) (amount)
> 2003w2 (customer name 1) (amount)
> 2003w2 (customer name 2) (amount)
> 2003w2 (customer name 3) (amount)
> 2003w3 (customer name 1) (amount)
> 2003w3 (customer name 2) (amount)
> 2003w3 (customer name 3) (amount)
>
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
