Re: st: spmap ... Variable _ID specified in option id()... r(459)

[Nick Cox <njcoxstata@gmail.com>]

So, what could the fix be? -spmap- expects unique IDs and throws you
out if it doesn't find them. I haven't studied the code in some years
to remember why, but it sounds like an absolute condition.

Nick
njcoxstata@gmail.com


On 4 November 2013 21:28, frank.lopresti@nyu.edu <fl2@nyu.edu> wrote:
> Over the years that I've used spmap, I get this error on basemaps I've
> been using without a problem.  I thought there might be a fix.  Frank
>
> On Mon, Nov 4, 2013 at 4:23 PM, Nick Cox <njcoxstata@gmail.com> wrote:
>> I'm with Sergiy in being puzzled on what the question is, but one
>> answer has to be -duplicates- to do more checking than -isid- does.
>> Nick
>> njcoxstata@gmail.com
>>
>>
>> On 4 November 2013 21:20, Sergiy Radyakin <serjradyakin@gmail.com> wrote:
>>> Well, yes, if the variable that you are specifying as ID is not unique
>>> among the observations, you should get this message. What is the
>>> question?
>>> Best, Sergiy
>>>
>>> PS: From the -spmap- code:
>>>    /* Check option id() */
>>>     preserve
>>>     marksample TOUSE, novarlist
>>>     markout `TOUSE' `id'
>>>     qui keep if `TOUSE'
>>>     capture isid `id'
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Mon, Nov 4, 2013 at 4:10 PM, frank.lopresti@nyu.edu <fl2@nyu.edu> wrote:
>>>> When I simply want to display the map and use the command
>>>>
>>>> spmap using worldcoor, id(_ID)
>>>>
>>>> I sometimes get error message:
>>>>
>>>> Variable _ID specified in option id() does not uniquely identify the
>>>> observations
>>>> r(459);
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