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<div class="moz-cite-prefix">Hi Tegan,<br>
<br>
Thanks for generating all the pedestal plots. They are very nice
and cover each channel individually. The next step is to summarize
the information into a a couple of summary plots. For example, it
would be good to plot the means of all the channels in one
histogram to see the total width distribution. This gives an upper
bound on the variation of pedestal drifts throughout the entire
run period. One can also plot the rms for all channels. This
allows one to quickly see how many outliers there are in either
distribution.<br>
<br>
It would also be good to remove the mean values of each channel
from the histogram. That is, let m^j_i be the mean of channel j
for run i. Then the mean for the entire run period for channel j,
mbar^j, would be sum(j<N) m^j_i / N, where N is the number of
runs used for pedestal determination. Then histogram m^j_i -
mbar^j. This shows the deviation of each channel from its own
mean.<br>
<br>
Thanks, Elton.<br>
<pre class="moz-signature" cols="72">Elton Smith
Jefferson Lab MS 12H3
12000 Jefferson Ave STE 4
Newport News, VA 23606
(757) 269-7625
(757) 269-6331 fax </pre>
On 1/30/15 12:45 PM, Zisis Papandreou wrote:<br>
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Hello everyone:
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<div>yesterday's minutes are now available: <a
moz-do-not-send="true"
href="https://halldweb1.jlab.org/wiki/index.php/Jan_29,_2015_Calorimetry">https://halldweb1.jlab.org/wiki/index.php/Jan_29,_2015_Calorimetry</a></div>
<div><br>
</div>
<div>Please correct/add as you see fit.</div>
<div><br>
</div>
<div>Best regards, Zisis...<br>
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<div><font
class="Apple-style-span"
color="#1d5091" face="Verdana"
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class="Apple-interchange-newline">
Dr. Zisis Papandreou</font></div>
<div style="color: rgb(0, 0, 0);"><span
class="Apple-style-span"
style="font-size: 13px;"><font
class="Apple-style-span"
face="Verdana">Professor of
Physics, Ph.D., P.Phys.</font></span></div>
<div style="color: rgb(0, 0, 0);"><span
class="Apple-style-span"
style="font-size: 13px;"><font
class="Apple-style-span"
face="Verdana">---------------------------------------------------------</font></span></div>
<div style="font-size: 12px;
font-style: normal; font-weight:
normal;"><font
class="Apple-style-span"
color="#929292" face="Verdana">Department
of Physics </font></div>
<div style="font-size: 12px;
font-style: normal; font-weight:
normal;"><font
class="Apple-style-span"
color="#929292" face="Verdana">University
of Regina<span
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</font></div>
<div style="font-size: 12px;
font-style: normal; font-weight:
normal;"><font
class="Apple-style-span"
color="#929292" face="Verdana">3737
Wascana Parkway</font></div>
<div style="font-size: 12px;
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color="#929292" face="Verdana">Regina,
SK S4S 0A2<span
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<div style="color: rgb(0, 0, 0);
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</font></div>
<div style="color: rgb(0, 0, 0);"><font
class="Apple-style-span"
face="Verdana"><b>Phone: (306)
585-5379</b></font></div>
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</span></div>
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</span></div>
</span><span class="Apple-style-span" style="font-family:
Verdana; font-size: 12px;"><font
class="Apple-style-span" color="#929292">Fax: (306)
585-5659</font></span>
<div><span class="Apple-style-span" style="font-family:
Verdana; font-size: 12px;"><font
class="Apple-style-span" color="#929292">Email:</font> </span><a
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<div>
<div style="word-wrap: break-word; -webkit-nbsp-mode:
space; -webkit-line-break: after-white-space;"><font
class="Apple-style-span" color="#929292"
face="Verdana">Website:</font> <a
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href="http://kronos.phys.uregina.ca/%7Ezisis/professional/">http://www.uregina.ca/science/physics/faculty-staff/faculty/zisis-papandreou.html</a></div>
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