st: Re: modifying id code (p.s. bootstrapping)

[baum <baum@bc.edu>]

--On Monday, October 14, 2002 2:33 -0400 Satyarth wrote:

> i have to add "51" to all the id-codes in my dataset [variable "idcode" is
> in the integer format]. can i convert it to string and add 51 at the end?
Use

gen str?? newcode = string(idcode)+"51"

Fill in the ?? with the maximum length of the resulting code.
The + operator is overloaded to denote concatenation of strings. Thus you
could also do string(givenname)+" "+string(surname)  although there are 
other ways of doing that.

Re bootstrapping, I imagine Steve Stillman is right on target with the use 
of 'cluster' in this context. But the buzzword 'block bootstrap' may be 
useful to know, as there are many references to it (and elaborations, such 
as the 'block-block bootstrap' in the literature. Try a search in IDEAS
(http://ideas.repec.org).

Kit
________________________________________________________________________
Christopher F Baum, Boston College Economics, Chestnut Hill MA 02467 USA
baum@bc.edu                       http://fmwww.bc.edu/ec-v/baum.fac.html
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