st: Getting error message when using tmap

[Daniel Lawson <dlawson1@nd.edu>]

Dear Statalisters,

When I use tmap using a coordinate file I created from Census geography 
data, I consistently get an error message saying ``master data not 
sorted''
Does anyone have any thoughts as to why I get this error from the 
following script?  When I use Scott Merryman's find county-level maps, 
I do not have this problem; when I use SuperPUMA maps that I generated 
from the Census bureau's geography data, I get this error.  I imagine 
this means that the problem is in how my polygon data are sorted, but I 
cannot figure out what the difference is between the setup for my data 
and Scott Merryman's.  Does anyone have any suggestions?


clear
use http://solidarity.flanner.nd.edu/data/SPUMA.dta
save SPUMA.dta
clear
set obs 9
gen _ID = _n
gen data = uniform()
tmap chor data, id(_ID) map(SPUMA.dta)

Thank you,
Daniel Lawson

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/