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Re: st: Re: statalist-digest V4 #1868

From   Joseph Coveney <[email protected]>
To   Statalist <[email protected]>
Subject   Re: st: Re: statalist-digest V4 #1868
Date   Sun, 30 Jan 2005 17:52:09 +0900

I wrote:

Take a look at the following do-file and see whether it answers your questions.


Sorry; when you change the name of a temporary variable, it's no longer 
temporary, although if you -reshape long- after appending numbers as in the 
first question's answer, it reverts to the original tempvar name and to being 

The same kind of list-building exercise that was illustrated in the do-file can 
be used, however, to build the list of temporary variables, as illustrated 
below in the revised do-file.

Joseph Coveney

sysuse auto, clear
ologit rep78 price turn
* Begin Question 1) here
local cat_max = e(k_cat)
local varlist = ""
forvalues i = 1/`cat_max' {
    local varlist `varlist' tmpvar`i'
tempvar `varlist'
local varlist = char(96) + subinstr("`varlist'", " ", char(39)+ "  " + 
char(96), .) + char(39)
display "`varlist'"
predict `varlist'  // These are tempvars and will disappear
                      // after exiting the do-file.
* End Question 1)--Begin Question 2) here
generate float latent_var = uniform()
foreach var of varlist `varlist' {
                  // The following are not tempvars and will
                  // remain afterward (after exiting from do-file),
                  // although the same technique above
                  // can be used here to make tempvars
                  // for these, too.
    generate byte sco_`var' = (latent_var > `var')
egen byte sco = rsum(sco_*)
slist _* sco_* sco, noobs

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