[Equest-users] sensitivity analysis

[Nick Caton]

Katie,

 

I'm with Pasha and not sure exactly what you're trying to do
("sensitivity analysis" sounds like a number of things to me), but since
you're getting started with the Parametric Run tool, maybe this has
eluded you:

 

If you create multiple parametric runs using the highlighted button in
the screengrab below, you then can define each of the runs within one
file (not saving multiple files).  Then, when you hit 'calculate' you'll
have the option to simulate all or any combination of these runs, along
with the "baseline" model.  Reports will be generated for each
simulation run which you can print out or click between to observe
changes in modeled behavior.

 

If the variables of your "sensitivity analysis" can be defined within
any one of these runs, it should be possible to do a number of iterative
runs altering those variables incrementally like you're getting at.

 

Sometimes we're tasked with largely different comparisons like two
entirely distinct systems - I find it's a time saver in those cases to
sometimes build two separate model files from the wizards-forward,
though I suppose conceptually you could do it all in one model and use
the parametric run tool to re-assign the systems associated with each
zone...

 

Does that help?


~Nick

 

 

 

 

 

NICK CATON, E.I.T.

PROJECT ENGINEER

25501 west valley parkway

olathe ks 66061

direct 913 344.0036

fax 913 345.0617

Check out our new web-site @ www.smithboucher.com 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Pasha
Korber-Gonzalez
Sent: Friday, July 09, 2010 3:06 AM
To: Katie Mac
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] sensitivity analysis

 

Katie,

 

not sure what your really trying to achieve here ( a bit more detail
will help us to help you), but have you learned to use Global parameters
to aid in quickly changing & referencing parametric variables for your
analysis?  Again without better understanding your goals, this might not
be the solution for your query.

 

Pasha

On Thu, Jul 8, 2010 at 12:53 PM, Katie Mac <kmacken2 at email.smith.edu>
wrote:

Hey everyone, 

 

Has anyone conducted a sensitivity analysis using eQUEST?  I was told
that the program would allow you to pick a range and increment values to
then run a series of simulations.

 

I just started using the Parametric Runs under Tools, but that's more of
a manual method for changing a parameter one at a time and saving it
under different names.  Is there more of an automatic method for this?

 

Thanks!

Katie

 


-- 
Katie MacKenzie
Smith College, Engineering 2011
Cell: 503.730.6354
E-mail: kmacken2 at smith.edu
Website: www.ktmackenzie.com <http://www.ktmackenzie.com/> 


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