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RE: st: mergepoly error
From
"Bowser, William (IITA)" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
RE: st: mergepoly error
Date
Sun, 18 Aug 2013 15:46:31 +0000
Great! Thank you for your help!
William
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Robert Picard
Sent: 18 August 2013 02:29 AM
To: [email protected]
Subject: Re: st: mergepoly error
The error code is generic and indicates that -mergepoly- could not merge the polygons.
I just completely rewrote -mergepoly- to allow for merging of polygons by attribute groups. For example, if you have a shapefile of U.S.
state boundaries, you can match each state with its Census Region and then merge state boundaries by region.
The new version also handles several corner cases (literally) that the original version could not. The error handling and reporting has also been beefed-up. I'm going to send the new version to Kit Baum for upload to SSC in the next few days. In the mean time, I'm sending to William the new version by email. Hopefully, that will solve his problem.
On Sat, Aug 17, 2013 at 5:29 PM, Bowser, William (IITA) <[email protected]> wrote:
>
> Dear Statalist,
>
> I am trying to aggregate spatial units embedded in a shapefile to generate some maps. I found the mergepoly command by Robert Picard to be well suited to address this problem, however after running the command on my coordinates data, the following error is returned:
>
>
> error . . . . . . . . . . . . . . . . . . . . . . . . . Return code 9
> assertion is false;
> no action taken;
> Return code and message from assert when the assertion is false;
> see [D] assert.
> Or, you were using mvencode and requested Stata change `.' to #
> in the specified varlist, but # already existed in the varlist,
> so Stata refused; see [D] mvencode.
>
> What could be causing this and how can I make the aggregations with mergepoly or another procedure?
>
> Thanks,
>
> William
>
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