[Equest-users] User-Defined Default Expressions

Fri Mar 3 15:41:20 PST 2017

Stop asking me hard questions! It’s a Friday!

If I had to guess I would likely credit David Reddy & the rest of crew at 360 Analytics… but honestly I can’t recall (could have been you, Bill?).

More constructively and to your point however, this optional argument however is what the doe2 reference manual is generally referring to when it lists “i" or “i1, i2” in its syntax / explanations of the BDL functions.  Example:
                [cid:image007.png at 01D29433.6607DD00]

These inputs can become very important if you are trying to set up user defaults for, say, the 2nd or 3rd plug load entries.  Study the doe2 defaults expressions in that area for further reference material.  That’s how the 3rd inputs know to be “n/a” before you entered at least the 1st and 2nd entries for a  given field.

~Nick

[cid:image001.png at 01D29433.07EAFF90]
Nick Caton, P.E., BEMP
  Senior Energy Engineer
  Regional Energy Engineering Manager
  Energy and Sustainability Services
  Schneider Electric

D  913.564.6361
M  785.410.3317
F  913.564.6380
E  nicholas.caton at schneider-electric.com<mailto:nicholas.caton at schneider-electric.com>

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

[cid:image002.png at 01D29433.07EAFF90]

From: Bishop, Bill [mailto:bbishop at pathfinder-ea.com]
Sent: Friday, March 03, 2017 3:14 PM
To: Nicholas Caton <Nicholas.Caton at schneider-electric.com>; Chris Jones <Christopher.Jones at RWDI.com>; Michael Campbell <mcamp1206 at gmail.com>
Cc: equest-users at onebuilding.org
Subject: RE: [Equest-users] User-Defined Default Expressions

Nick,
Where did you find that little gem of BDL?
~Bill

From: Nicholas Caton [mailto:Nicholas.Caton at schneider-electric.com]
Sent: Friday, March 03, 2017 4:04 PM
To: Bishop, Bill <bbishop at pathfinder-ea.com<mailto:bbishop at pathfinder-ea.com>>; Chris Jones <Christopher.Jones at RWDI.com<mailto:Christopher.Jones at RWDI.com>>; Michael Campbell <mcamp1206 at gmail.com<mailto:mcamp1206 at gmail.com>>
Cc: equest-users at onebuilding.org<mailto:equest-users at onebuilding.org>
Subject: RE: [Equest-users] User-Defined Default Expressions

Appending to this, while ("C-ACTIVITY-DESC") returns the first 4 characters by default, if you ever need to further distinguish inputs within spaces sharing the same/similar activity descriptors, you can also reference the 2nd set of 4 characters (or the 3rd set, or the 4th set…).

To do this, append the optional argument “,#” wherever you’d normally specify “C-ACTIVITY-DESC.”

To build on the running example, say you had 2 tenants to distinguish in a building with “Retail” space, but they had two different occupancy densities.  You could handle that by first adding to their descriptors, such as follows:
Retail_–_Best Buy
Retail_–_Home Depot

The first 4 characters for each case are the same:  “RETA” (list position 0).  The second set of 4 is “IL_–“ (list position 1).  The third set is finally distinguishable:  “_BES” and “_HOM” (list position 2).

From here you could either insert an if/then statement for the “Reta” case, or just nest another switch statement.  Added some formatting for clarity, but highlighted the new addition:

   AREA/PERSON      =
{if(#SV(#L("ZONE-TYPE"))==2) then no_def else
  if(#RV(#L("PEOPLE-SCHEDULE"))!=0) then unused else
  switch (#L("C-ACTIVITY-DESC"))
    case "Reta": switch (#L("C-ACTIVITY-DESC",2))
                   case “_Bes” : 67
                   case “_Hom” : 67*2
                   default : 500
                 endswitch
    case "Lobb": 150
    case "Clas": 100
    default: 500
  endswitch
  endif
endif}

~Nick

[cid:image001.png at 01D29433.07EAFF90]
Nick Caton, P.E., BEMP
  Senior Energy Engineer
  Regional Energy Engineering Manager
  Energy and Sustainability Services
  Schneider Electric

D  913.564.6361
M  785.410.3317
F  913.564.6380
E  nicholas.caton at schneider-electric.com<mailto:nicholas.caton at schneider-electric.com>

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

[cid:image002.png at 01D29433.07EAFF90]

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Bishop, Bill via Equest-users
Sent: Friday, March 03, 2017 12:24 PM
To: Chris Jones <Christopher.Jones at RWDI.com<mailto:Christopher.Jones at RWDI.com>>; Michael Campbell <mcamp1206 at gmail.com<mailto:mcamp1206 at gmail.com>>
Cc: equest-users at onebuilding.org<mailto:equest-users at onebuilding.org>
Subject: Re: [Equest-users] User-Defined Default Expressions

Mike,
You can start with the expression below. Paste only the text between the brackets if you are pasting within the interface. If pasting into the input file, this would go after “SET-DEFAULT FOR SPACE”. Like Chris said, the case statement names should be four characters or less. However, they are not case sensitive, so upper/lower case doesn’t matter.
~Bill

   AREA/PERSON      =
{if(#SV(#L("ZONE-TYPE"))==2) then no_def else
if(#RV(#L("PEOPLE-SCHEDULE"))!=0) then unused else
switch (#L("C-ACTIVITY-DESC"))
case "Reta": 67
case "Lobb": 150
case "Clas": 100
default: 500
endswitch
endif
endif}

William Bishop, PE, BEMP, BEAP, CEM, LEED AP | Pathfinder Engineers & Architects LLP
Senior Energy Engineer

[cid:image003.jpg at 01D29433.07EAFF90]  [cid:image004.jpg at 01D29433.07EAFF90]

134 South Fitzhugh Street                 Rochester, NY 14608

T: (585) 698-1956                        F: (585) 325-6005

bbishop at pathfinder-ea.com<mailto:wbishop at pathfinder-ea.com>             www.pathfinder-ea.com<http://www.pathfinder-ea.com/>

[http://png-5.findicons.com/files/icons/977/rrze/720/globe.png]Carbon Fee and Dividend - simple, effective, and market-based.

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Chris Jones via Equest-users
Sent: Friday, March 03, 2017 12:52 PM
To: Michael Campbell <mcamp1206 at gmail.com<mailto:mcamp1206 at gmail.com>>
Cc: equest-users at onebuilding.org<mailto:equest-users at onebuilding.org>
Subject: Re: [Equest-users] User-Defined Default Expressions

Note, only the first 4 characters of the C-ACTIVITY-DESC field are recognized in user defined expressions. Therefore, if your UDF uses “RETAIL” as the test, it may fail because only “RETA” is used.

Other than that, I suggest reviewing the BDLDFT.TXT file in the eQUEST 3-65 Data folder. It is full of example default expressions.

[Title: RWDI - Description: RWDI logo]<http://www.rwdi.com/assets/logos/RWDI-logo.gif>

Christopher Jones, P.Eng. | Senior Energy Analyst
RWDI
901 King Street West, Suite 400, Toronto, ON M5V 3H5 Canada
Tel: (519) 823-1311 ext 2052
rwdi.com<http://www.rwdi.com/>

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Michael Campbell via Equest-users
Sent: Friday, March 03, 2017 12:32 PM
To: equest-users
Subject: [Equest-users] User-Defined Default Expressions

Hi eQUEST Users,
I'm trying to create default user expressions in an effort to auto-populate certain fields in my models.
I want to reference the activity description (C-ACTIVITY-DESC) have it automatically fill in fields such as Area/Person.
So for this example, I'm trying to make all spaces that have Activity Description of "RETAIL" to be populated with a Area/Person value of 67.
I've tried using the "Switch" function and if-then statements but haven't been able to get it to work.
Any assistance is appreciated.
Thank you,
Mike Campbell
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