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<p>Hi, Yu Guo -</p>
<p>You may want to take a look at the graphlet orbit terms in the
ergm.graphlets package
(<a class="moz-txt-link-freetext" href="https://github.com/CarterButts/ergm.graphlets">https://github.com/CarterButts/ergm.graphlets</a>). It is certainly
possible to model the propensity for those with particular
attributes to serve as bridges (for many different kinds of local
bridges, though the one you probably have in mind is orbit 2),
though there is not a specific form that selects for the full set
of brokerage roles (e.g., you can model the propensity for those
in group A to serve as brokers in general, but not the propensity
for those in group A to broker relations between members of group
B per se). This is also distinct from the inhomogeneous 2-stars,
since the lack of closure here is important (which the graphlet
terms do respect).</p>
<p>If you need precisely this term, then the most direct approach is
to code it up oneself using ergm.userterms. As terms go, this one
is not too hard, though some C is involved. You might first want
to see if you can get the observed level of brokerage to emerge
from other factors, in any event, rather than start by positing a
generative force for itinerant brokerage. <br>
</p>
<p>Hope that helps,</p>
<p>-Carter<br>
</p>
<div class="moz-cite-prefix">On 10/23/22 11:36 PM, Yu Guo wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAEr7tzuR7E+JaqJBWmRMwMan67jiZ7ymxF2=3jYtc9HNejNZyw@mail.gmail.com">
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<p
style="margin:0in;font-family:Calibri;font-size:11pt;color:rgb(14,16,26)">Dear
all,</p>
<p
style="margin:0in;font-family:Calibri;font-size:11pt;color:rgb(14,16,26)"> </p>
<p
style="margin:0in;font-family:Calibri;font-size:11pt;color:rgb(14,16,26)">I
hope
this email finds you well. </p>
<p
style="margin:0in;font-family:Calibri;font-size:11pt;color:rgb(14,16,26)"><br>
</p>
<p
style="margin:0in;font-family:Calibri;font-size:11pt;color:rgb(14,16,26)"><span
lang="zh-CN">I am currently working on a project with
one-mode networks. We're
interested in understanding how to achieve the <bridg</span><span
lang="en-US">e</span><span lang="zh-CN"> configuration>
with ergm-term in R. We
hypothesized :</span></p>
<p
style="margin:0in;font-family:Calibri;font-size:11pt;color:rgb(14,16,26)"> </p>
<ol
style="direction:ltr;unicode-bidi:embed;margin-top:0in;margin-bottom:0in;font-family:Calibri;font-size:11pt"
type="1">
<li
style="margin-top:0px;margin-bottom:0px;vertical-align:middle;color:rgb(14,16,26)"
value="1"><span style="font-size:11pt" lang="zh-CN">Actors
who are with "female"(for example) attributes would be
more likely to play a bridge for the other two actors with
the attributes of "male"</span><span
style="font-size:11pt" lang="en-US">.</span></li>
</ol>
<p
style="margin:0in;font-family:Calibri;font-size:11pt;color:rgb(14,16,26)"> </p>
<p
style="margin:0in;font-family:Calibri;font-size:11pt;color:rgb(14,16,26)"><span
lang="zh-CN">I'm unsure if there are any ERGM-terms in R
that can aptly capture the
hypothesi</span><span lang="en-US">s</span><span
lang="zh-CN">. And any advice
would be greatly appreciated! Thank you!</span></p>
<p style="margin:0in;font-family:Calibri;font-size:11pt"
lang="en-US"> </p>
<p style="margin:0in;font-family:Calibri;font-size:11pt"
lang="en-US">Best,</p>
<p style="margin:0in;font-family:Calibri;font-size:11pt"
lang="en-US">Yu Guo,
Ph.D.</p>
<p style="margin:0in;font-family:Calibri;font-size:11pt"
lang="en-US">Harbin
institution of technology </p>
<p style="margin:0in;font-family:Calibri;font-size:11pt"
lang="en-US"> </p>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
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