Joe,
The database section of the manual does not yet conform to the UrbanSim
4 standards. It is very close, but different in several ways.
One of these ways is models_variables - this table is no longer used in
UrbanSim 4. UrbanSim 4's integrated estimation process uses a Python
file (for instance, see
opus.psrc.estimation.estimation_HLCM_variables.py) to specify the set of
model variables to use. The estimation process then creates
coefficients and specification objects, which may be stored as tables in
the database, so that a later simulation can re-create the coefficient
and specification objects.
We plan to add a tutorial on estimation, hopefully within the next few
weeks.
David
David Socha
Center for Urban Simulation and Policy Analysis
University of Washington
www.urbansim.org <http://www.urbansim.org/>
206 616-4495
________________________________
From: users-bounces_at_urbansim.org
[mailto:users-bounces_at_urbansim.org] On Behalf Of Joseph Nunez
Sent: Thursday, July 13, 2006 9:32 PM
To: users_at_urbansim.org
Subject: Re: Running Simulations and Demo Databases
Liming,
Thanks for your help, you have certainly pointed me in the right
direction.
Reading through the user manual, the LPM model requires that its
variables must be present in the model_variables. I am using an old
model_variables table with the JAVA CLASS column still pointing to java
paths not to OPUS. I have tried tinkering with this table changing path
names and column names but to no avail, i will continue reading through
the code to better understand how everything is pased from the db.
That being said, Does anyone have the table schema for URBANSIM4
model_variables table??, ( in the user guide it merely refers to it).
if not, I will patiently await for documentation of the Database
tables section (Chapter 8) to be completed.
Until then.....Hope you guys had a successful workshop.
Best Regards,
Joe
-----Original Message-----
From: "Liming Wang" <lmwang_at_u.washington.edu>
To: "Joseph Nunez" <joseph.nunez_at_nieir.com.au>
Cc: users_at_urbansim.org
Date: Thu, 13 Jul 2006 14:02:20 -0700
Subject: Re: Running Simulations and Demo Databases
Joe,
The error with land price model is because of a change
of variable name format in model specification. You can refer to the
user guide sections of variable name and specification and coefficients
for the new format. We'll also provide some documents on converting from
UrbanSim3 to UrbanSim4 soon. For OpenEV you'll need to prepare a
prototype_dataset and template OpenEV project file beforehand. It works
for the application of PSRC in our environment with some file locations
and names hard-coded. Because of compatibility issue, we may eventually
phase it out and it won't be supported.
Hope these help.
Liming.
On 7/12/06, Joseph Nunez < joseph.nunez_at_nieir.com.au
<javascript:openWin('/WorldClient.dll?Session=GTWFZJC&View=Compose&To=jo
seph.nunez_at_nieir.com.au&New=Yes','Compose',800,600,'yes');> > wrote:
Hi all,
I have been exploring Urbansim 4. I have just
encountered problems with running a simulation and creating indicators
for the Eugene_Springfield baseyear 1980. I think this is attributed to
that it was made for Ubransim 3 as the Input Database. Is there a sample
database for Urbansim 4 (PSRC perhaps)?
1. If there isn't, I have started simple with
just simulating the "land price model". I started a simulation but the
following error: "No variable ('gridcell.devtype_1'). Looking through
the opus.urbansim.gridcell , I have found only devtype_DDD . I do not
know how/where this variable is computed from. (I assume devtype is
Development Type)
2. In creating an Openev_map, do you need to
save a opf file beforehand with all the shapefiles loaded within it? I
recieve the following errors: unable to load
'template_region_uga_leg.opf' and get an empty tif file. I have tried
opening the Shapefiles for the Eugene_Springfield in Openev but it just
crashes the program. (I am on WinXP using Openev_FW)
Any advice and comments are greatly appreciated.
best regrads,
Joe
---------------------------------------
Running Land Price Model (from
opus.urbansim.models.corrected_land_p
rice_model): started on Thu Jul 13 12:57:22 2006
opus.urbansim.gridcell.is_in_development_type_group_SSS
Creating DevelopmentGroupSet object.
opus.urbansim.gridcell.is_in_development_type_group_SSS: complet
ed...0.0 sec, total 14740 KB, up 276 KB
Total number of individuals: 15441
LPM chunk 1 out of 1.: started on Thu
Jul 13 12:57:23 2006
Compute variables ...
WARNING: No variable
('gridcell.devtype_1', 'devtype_1') fou
nd or an error occured during loading.
Traceback (most recent call last):
File
"C:\Python23\lib\site-packages\opus\urbansim\model_coordinators\model_sy
s tem.py", line 417, in ?
s.run(resources, options.is_run_subset)
---------------------------------------------
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Received on Fri Jul 14 2006 - 08:23:40 PDT
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