Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: Creating new variables from a STATA panel dataset


From   Lucio Vinhas de Souza <lvdesouza@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Creating new variables from a STATA panel dataset
Date   Wed, 3 Aug 2011 09:14:26 -0700 (PDT)

Dear All,

Very basic question, for someone that has not used STATA for several years now: I have a panel dataset (adequately tis t and iis id) of several hundred variables, and I want to:

a)	Generate new variables
b)	Run a xtbond from those new variables

I have been trying to generate new variables which are change rates form the existing ones. The names of the existing variables are all variations from the format “countrycode_extension”. I have been trying to

gen “*_extension_new”=((“*_extension”-“*_extension_new”[_n-1])/ “*_extension_new”[_n-1])

and always get the message

*invalid name

What and I doing wrong?

Lucio.

*
*   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/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index