Re: st: Use of subinword in Stata 13 vs. Stata 12

[Dirk Enzmann <dirk.enzmann@uni-hamburg.de>]

Thanks you Robert,

this is very helpful, indeed!

Dirk

On Fri, 19 Jul 2013 12:33:50 -0400, Robert Picard <picard@netbox.com> wrote:
>One more thing, if you are trying to remove a variable name from a
>local macro that contains a list of variables, it would be better to
>use extended macro functions for lists (-help macrolists-).
>
>local vlist var1 var2 var3
>local generate var2
>local vless : list vlist - generate
>
>On Fri, Jul 19, 2013 at 12:05 PM, Robert Picard <picard@netbox.com> wrote:
>> Looks like the behavior of subinword() has indeed changed in version
>> 13. Since the local macro generate is an empty string, you are asking
>> to look for a non-existent token and replace it with a space. In other
>> words:
>>
>> local vlist = "var1 var2 var3"
>> di subinword("`vlist'",""," ",.)
>>
>> In version 12 and before, Stata displays an empty string. In version
>> 13, Stata displays "var1 var2 var3". It does not make sense that a
>> missing token matches every word in vlist so I think that the new
>> behavior in version 13 makes more sense.
>>
>> Robert
>>
>>
>> On Fri, Jul 19, 2013 at 11:20 AM, Dirk Enzmann
>> <dirk.enzmann@uni-hamburg.de> wrote:
>>> Most likely I am suffering from temporary blindness, but I can't see my
>>> mistake:
>>>
>>> When trying to use -subinword()-, I get different results in Stata 
13 as
>>> compared to Stata 12 (or 11, or 10). Example:
>>>
>>> * --- Start Stata commands: ---------------
>>>
>>> local vlist = "trunk"
>>> local generate = ""
>>> di subinword("`vlist'","`generate'"," ",.)
>>>
>>> * --- End Stata commands. -----------------
>>>
>>> Using version 13 the -display- command in the third line shows
>>>
>>> trunk
>>>
>>> (which I expect), whereas version 12 (or 11 or 10) shows
>>>
>>>
>>>
>>> nothing. Why does the replacement of the occurance of "" in "trunk" 
yields
>>> ""? And why does version 13 yield "trunk"?
>>>
>>> Dirk

========================================
Dr. Dirk Enzmann
Institute of Criminal Sciences
Dept. of Criminology
Rothenbaumchaussee 33
D-20148 Hamburg
Germany

phone: +49-(0)40-42838.7498 (office)
       +49-(0)40-42838.4591 (Mrs Billon)
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email: dirk.enzmann@uni-hamburg.de
http://www2.jura.uni-hamburg.de/instkrim/kriminologie/Mitarbeiter/Enzmann/Enzmann.html
========================================
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