RE: st: passing indefinite no of arguments

[tashi lama <ltashi32@hotmail.com>]

Hellow Nick, 

 

 

    I have finally completed the ranking problem deselecting variables passed as arguments...Here is the code if you are interested...

 

 

args graph_type   
if "`graph_type'"=="rank"  {   
                   args graph_type firm_id start_date end_date                          
       unab all: hits*
       local i 5
       while "``i''"!="" {
       local all : list all - `i'
       local ++i
       }
       local length : word count `all'
       if `length '>5 {
          
                   collapse (sum) hits* if tin(`start_date',`end_date')
       local counter 1
      foreach x of local all {       
                          if `x'!=hits`firm_id' & `x'>hits`firm_id' {
                                            local  ++counter
                   }
                   }
                   rename hits`firm_id' id_`firm_id'
                   list id_`firm_id' , noobs
        
        di "There are `length' firms and  I rank `counter' " 
                   exit
                   } 
                   else {
                   di "can't run"
                   exit
                   }
                       

 

 

Thanks for all your help....

 

Tashi



----------------------------------------
> From: ltashi32@hotmail.com
> To: statalist@hsphsun2.harvard.edu
> Subject: RE: st: passing indefinite no of arguments
> Date: Wed, 4 Apr 2012 19:41:43 +0000
>
> Thank you Nick for your time. I will read this weekend and try again.
>
>
>
> ----------------------------------------
> &#62&#59; Date&#58&#59; Wed, 4 Apr 2012 20&#58&#59;23&#58&#59;02 &#43&#59;0100&#13&#59;&#10&#59;&#62&#59; Subject&#58&#59; Re&#58&#59; st&#58&#59; passing indefinite no of arguments&#13&#59;&#10&#59;&#62&#59; From&#58&#59; njcoxstata&#64&#59;gmail.com&#13&#59;&#10&#59;&#62&#59; To&#58&#59; statalist&#64&#59;hsphsun2.harvard.edu&#13&#59;&#10&!
 #59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; No, sorry, that was quite wrong in part.&#13&#59;&#10&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; Local macro 0 _is_ defined automatically as all the arguments to a&#13&#59;&#10&#59;&#62&#59; do-file. However, in this case the two lines&#13&#59;&#10&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; syntax anything&#13&#59;&#10&#59;&#62&#59; tokenize &#96&#59;anything&#39&#59;&#13&#59;&#10&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; don&#39&#59;t do anything that can&#39&#59;t be done in terms of macros &#96&#59;1&#39&#59; &#96&#59;2&#39&#59; &#96&#59;3&#39&#59; &#96&#59;4&#39&#59; up.&#13&#59;&#10&#59;&#62&#59;!
 &#13&#59;&#10&#59;&#62&#59; On Wed, Apr 4, 201

2 at 6&#58&#59;54 PM, Nick Cox &#60&#59;njcoxstata&#64&#59;gmail.com&#62&#59; wrote&#58&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; Tashi&#58&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; It is best to think that you are addressing Statalist, not any one person.&#13&#59;&#10&#59;&!
> #62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; Evidently you have a do-file -file.do- but where it starts and ends is&#13&#59;&#10&#59;&#62&#59; &#62&#59; not clear from your code fragments below.&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; Evidently you are using -syntax- in a do-file which is not illegal but&#!
 38;#13&#59;&#10&#59;&#62&#59; &#62&#59; it is unusual. You need to understand that -syntax- looks inside the&#13&#59;&#10&#59;&#62&#59; &#62&#59; local macro 0, which apparently you never define. In a program,&#13&#59;&#10&#59;&#62&#59; &#62&#59; defined by code following a -program- statement, that is done&#13&#59;&#10&#59;&#62&#59; &#62&#59; automatically. However, &#96&#59;1&#39&#59; &#96&#59;2&#39&#59; etc. are defined in a do-file so your&#13&#59;&#10&#59;&#62&#59; &#62&#59; misunderstanding does not bite you. That is, the two lines&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; syntax anything&#13&#59;&#10&#59;&#62&#59; &#62&#59; tokenize &#96&#59;anythin!
 g&#39&#59;&#13&#59;&#10&#59;&#62&#59; 

&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; do absolutely nothing but that does not invalidate your problem. On&#13&#59;&#10&#59;&#62&#59; &#62&#59; the other hand,&#13&#59;&#10&#59;&!
> #62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; foreach x of &#225&#59;varlist1 id&#42&#59; &#
>
> 123&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; is illegal. You are confusing two quite different syntaxes&#58&#59; examples are.&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; foreach x of local varlist1 &#123&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59!
 ;&#13&#59;&#10&#59;&#62&#59; &#62&#59; foreach x of varlist id&#42&#59; &#123&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; As I have tried to signal before, I advise against trying to write&#13&#59;&#10&#59;&#62&#59; &#62&#59; your own ranking code when Stata &#40&#59;and Mata&#41&#59; provide tools for sorting&#13&#59;&#10&#59;&#62&#59; &#62&#59; and ranking and there are existing programs to be exploited.&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; Nick&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59; On Wed, Apr 4, 2012 at 4&#58&#59;52 PM, tashi lama &#6!
 0&#59;ltashi32&#64&#59;hotmail.com&#62&#59; wrote&

#58&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; Hello Nick,&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; Could you pls look into my code below and tell me where is that I screwed although I feel like the code should work fine, at l!
> east in principle. Here is the dataset and the problem is of ranking ignoring few variables.&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; date &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; hits1 &#225&#59; &#225&#59; hits2 &#225&#59;!
  &#225&#59; hits3 &#225&#59; &#225&#59; &#225&#59;hits4 &#225&#59; hits5&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; 01jan2010 &#225&#59; &#225&#59; &#225&#59; 3 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;2 &#225&#59; &#225&#59; &#225&#59; &#225&#59;5 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;1 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;5&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; 02jan2010 &#225&#59; &#225&#59; &#225&#59; 5 &#225&#59; &&#35!
 ;225&#59; &#225&#59; &#225&#59; &#225&#59;7 &#

38;#225&#59; &#225&#59; &#225&#59; &#225&#59;8 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;4 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;2&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; 03jan2010 &#225&#59; &#225&#59; &#225&#59; 8 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;6 &#225&#59; &#225&#59; &#225&#59; &#225&#59;2 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;1 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;6&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&!&#13!
 ;
> #10&#59;&#62&#59; &#62&#59;&#62&#59; 04jan2010 &#225&#59; &#225&#59; &#225&#59; 6 &#225&#59; &#225&#59; &#
>
> 225&#59; &#225&#59; &#225&#59;5 &#225&#59; &#225&#59; &#225&#59; &#225&#59;3 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;2 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;7&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; 05jan2010 &#225&#59; &#225&#59; &#225&#59; 6 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;4 &#225&#59; &#225&#59; &#225&#59; &#225&#59;2 &#225&#59; &#225!
 &#59; &#225&#59; &#225&#59; &#225&#59;6 &&

#35;225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;7&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; 06jan2010 &#225&#59; &#225&#59; &#225&#59; 1 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;5 &#225&#59; &#225&#59; &#225&#59; &#225&#59;3 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;7 &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;8&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#!
 38;#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; if &#34&#59;&#96&#59;2&#39&#59;&#34&#59;&#61&#59;&#61&#59;&#34&#59;rank&#34&#59; &#225&#59;&#123&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;syntax anything &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;!
&#!
 62; &#225&#59; &#225&#59;/&#42&#59;allowing an

y data type to be passed. &#96&#59;3&#39&#59; and &#96&#59;4&#39&#59; are start_date and end_date&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;tokenize &#96&#59;anything&#39&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;local para &#34&#59;&#96&#59;1&#39&#59;&#34&#59; &#34&#59;&#96&#59;2&#39&#59;&#34&#59; &#34&#59;&#96&#59;3&#39&#59;&#34&#59; &#34&#59;&#96&#59;4&!
 #38;#39&#59;&#34&#59; &#225&#59; &#225&#59; &#225&#59;/&#42&#59; breaking arguments into 2 macros &#96&#59;para&#39&#59; and &#96&#59;deselected&#39&#59; and putting first 4 arguments into &#96&#59;para&#39&#59; and rest into &#96&#59;deselcted&#39&#59;.&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;macro shift 4&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;local deselected &#34&#59;&#96&#59;&#!
 42&#59;&#39&#59;&#34&#59;&#13&#59;&#10

&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; unab all &#58&#59; hits&#42!
> &#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;
>
> &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; local varlist1 &#58&#59; list all - deselected &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; /ignore variables from the list&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#!
 38;#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; di &#34&#59;&#96&#59; varlist1&#39&#59;&#34&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;/displays the variables after ignoring. Works until this point.&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; rename hi!
 ts&#42&#59; id_&#42&#59; &#225&#59; &#

225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; /changing hits1 into id_1 and so on....&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; collapse &#40&#59;sum&#41&#59; id&#42&#59; if tin&#40&#59;&#96&#59;3&#39&#59;,&#96&#59;4&#39&#59;&#41&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#2!
> 25&#59; &#225&#59; &&#3!
 5;225&#59; &#225&#59; &#225&#59; /summing providing date range&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; local counter 1&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;foreach x of &#225&#59;varlist1 id&#42&#59; &#123&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#5!
 9; &#225&#59; &#225&#59;/comparing and ranking&&#3

5;13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;if &#96&#59;x&#39&#59;&#33&#59;&#61&#59;id_&#96&#59;1&#39&#59; &#38&#59; &#96&#59;x&#39&#59;&#62&#59;id_&#96&#59;1&#39&#59; &#123&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#5!
 9; &#225&#59; &#225&#59; &#225&#59; &#225&#59;local &#225&#59;&#43&#59;&#43&#59;counter&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#2!
> 25&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#2
>
> 25&#59; &#225&#59;&#125&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225!
 &#59; &#225&#59; &#225&#59; &#225&#59; &&#

35;225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#125&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; list&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; di!
  &#34&#59;There are &#96&#59;count&#39&#59; firms in total and I rank &#96&#59;counter&#39&#59; &#34&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; exit&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59;&#125&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;!
 &#62&#59;&#13&#59;&#10&#59;&#62&#59; &

#38;#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; Questions&#58&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; 1. When I ran&#!
> 13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59; &#225&#59; &#225&#59; &#225&#59; do file 1 rank 01jan2010 02jan2010 hits3 hits4, there is an error which reads invalid syntax. I am not sure where I screwed.&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&!
 #13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; 2. I supplied date range&#40&#59;01jan2010-02jan2010&#41&#59; for collapse sum, but it sums for all the dates &#40&#59;01jan2010-06jan2010&#41&#59;. Any idea&#63&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; 3. when I change the for loop as &#225&#59; &#225&#59; &#225&#59; foreach x of local varlist1 &#225&#59;and run it, I get hits1 not found. So, it is still taking hits1 as the first variable in the varlist1. But I thougnt everything in varlist1 starts with id_ since I renamed them. Could you pls explain&#63&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#3!
 8;#13&#59;&#10&#59;&#62&#59; &#62&#59;&#38

;#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#62&#59;&#62&#59; &#225&#59;Thank you very much and I really appreciate your time...&#13&#59;&#10&#59;&#62&#59; &#62&#59;&!
> #62&#59;&#13&#59;&#10&#59;&#62&#59;&#13&#59;&#10&#59;&#62&#59; &#42&#59;&#13&#59;&#10&#59;&#62&#59; &#42&#59; For sear
>
> ches and help try&#58&#59;&#13&#59;&#10&#59;&#62&#59; &#42&#59; http&#58&#59;//www.stata.com/help.cgi&#63&#59;search&#13&#59;&#10&#59;&#62&#59; &#42&#59; http&#58&#59;//www.stata.com/support/statalist/faq&#13&#59;&#10&#59;&#62&#59; &#42&#59; http&#58&#59;//!
 www.ats.ucla.edu/stat/stata/&#13&#59;&#10&#59;
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