st: re: Shuffling elements of a string variable within cases

[Kit Baum <baum@bc.edu>]

Someone on the Mata development team must spend some time in Las  
Vegas...

clear
input str6 var1
abcdef
abcdef
abcdef
end

l var1

program drop _all
program shufstr
version 9.2
syntax varlist(string max=1)
mata: shufstr("`varlist'")
end

mata: mata clear
mata:
void function shufstr(string vector vname)
{
st_sview(S=.,.,vname)
for(i=1; i<= rows(S); i++) {
	S[i,.]=char(jumble(ascii(S[i,.])')')
	}
}
end

shufstr var1
l var1
shufstr var1
l var1


Kit Baum, Boston College Economics
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html


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