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st: Creating new variables from a STATA panel dataset
From
Lucio Vinhas de Souza <[email protected]>
To
[email protected]
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.
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