Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: Adding observations to the beginning of a time-series or panel dataset
From
"Dimitriy V. Masterov" <[email protected]>
To
Statalist <[email protected]>
Subject
st: Adding observations to the beginning of a time-series or panel dataset
Date
Thu, 12 Aug 2010 16:02:37 -0400
I am trying to add additional time observations to the beginning of a
panel data set. I am really trying to replicate what -tsappend,
first()- would do if it existed.
Using tsappend works if you want to add data at the end, but not at
the beginning. To simplify things, tsappend1.dta is a time-series data
set that spans 1960m2 to 2000m1. The first tsappend works, while the
second does not:
#delimit;
set more off;
webuse tsappend1, clear;
tsset;
tsappend, last(2005m2) tsfmt(tm);
tsset;
tsappend, last(1955m2) tsfmt(tm);
tsset;
Any suggestions?
Dimitriy
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/