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Indirectly there probably isn’t a daily set of metrics in the Guideline since the simulation programs aren’t usually outputting daily results, but there’s no reason there couldn’t be one statistically.
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<div>You could make one if you had only daily utility data and had to aggregate the simulation results to daily totals, there isn’t a published target metric but you could still show that you calculated one and why you think it was a good or bad result.</div>
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<div>DSE Mobile</div>
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<blockquote type="cite">On Mar 14, 2023, at 6:10 AM, Jim Dirkes via Bldg-sim <bldg-sim@lists.onebuilding.org> wrote:<br>
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<div style="font-family: Arial, sans-serif; font-size: 14px;">Dear Chris,</div>
<div style="font-family: Arial, sans-serif; font-size: 14px;">Kudos for appreciating a gap in your understanding. (I'm in your camp)</div>
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<div style="font-family: Arial, sans-serif; font-size: 14px;">On the other hand, there are SO many variables in building operation that, short of a highly instrumented (and carefully calibrated) building for everything from lights to people to plug loads to
HVAC - calibration is a fiction (and I'm confident that no such building exists). Daily calibration is a complete fiction, perhaps even a deception. On top of that, a "calibrated" model is just a moment in time; everything going forward is guaranteed to be
different than during the calibration time period.</div>
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<div style="font-family: Arial, sans-serif; font-size: 14px;">I think of "calibration" as more like a sensitivity analysis - determine which variables matter more and which matter less. GenOpt works nicely for that purpose <span><a target="_blank" rel="noreferrer nofollow noopener" href="https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Flbl-srg%2FGenOpt&data=05%7C01%7C%7C0d63c1ff284443bc766608db247cc033%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638143890442545264%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=hMX7ISkjm6aByq3ZaUXf5p2QKTf3nlOBYbgP7ALodWQ%3D&reserved=0" originalsrc="https://github.com/lbl-srg/GenOpt" shash="yCRpTGY11FkdPuaL73n3qxuO5zJLo0ol+KbxJEVYFf9fHL3f/eXlcS3yU84UZbAqDgA3xJx9YAAh1a3Tj8hepr4PAStURjgQodzYTnk18I6lyxmh5nENWDzfL8w5fH3+JQo0JYK9A3bq9X6eDBSWaOtphV86b4MtzBGIIXQAGFc=">https://github.com/lbl-srg/GenOpt</a></span></div>
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<p style="margin-bottom:6pt;" class="MsoNormal"><span style="background-color:rgb(255,255,255);" class="highlight"><span style="color:rgb(34,34,34);" class="colour"><span style="font-family:Arial, Helvetica, sans-serif;" class="font">Jim Dirkes 1631 Acacia
Drive NW Grand Rapids, MI 49504 - 616 450 8653</span></span></span><br>
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<div><span style="background-color:rgb(255,255,255);" class="highlight"><span style="color:rgb(34,34,34);" class="colour"><span style="font-family:Arial, Helvetica, sans-serif;" class="font"><b>Coffee Conversation:</b></span></span></span></div>
<div><span style="background-color:rgb(255,255,255);" class="highlight"><span style="color:rgb(34,34,34);" class="colour"><span style="font-family:Arial, Helvetica, sans-serif;" class="font"><b><span style="color:rgb(0,0,0);font-family:Calibri, sans-serif;font-size:14.6667px;font-weight:400;background-color:rgb(255,255,255);display:inline;">The "individual"
is an impossible concept, conceived by the Enlightenment philosophers. It makes no sense to the Christian. In marriages, and families, in associations and friendships and religious orders, we are not individuals, but a communion of persons.</span><br>
</b></span></span></span></div>
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<div class="protonmail_quote">------- Original Message -------<br>
On Tuesday, March 14th, 2023 at 6:52 AM, Chris Yates via Bldg-sim <bldg-sim@lists.onebuilding.org> wrote:<br>
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<p class="MsoNormal">Hi All</p>
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<p class="MsoNormal">I do find ASHRAE Guideline 14 a little too hardcore for my basic understanding of statistics. I can plug any of the equations into Excel, but I’ve realised my statistics understanding is very limited! (I’m outed!)</p>
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<p class="MsoNormal">We don’t actually have to work to G14 in the UK (probably good because my copy is a bit old). I finally realised I didn’t know enough after I’d been (lazily) using R2 in Excel on some monthly data. I thought that R2 > 0.9 was generally
ok… yeah, it wasn’t.</p>
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<p class="MsoNormal">So, are there any easy to understand resources available?</p>
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<p class="MsoNormal">I’ve been messing around with the IMT as well. It’s been fun going back to DOS
<span style="font-family:"Segoe UI Emoji",sans-serif">😊</span>. This got me into daily methods, which leads to my next question. Is there any reason why there isn’t a daily calibration option specified in G14?</p>
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<p class="MsoNormal">Many thanks!</p>
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<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Chris Yates</span></p>
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