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	<title>Comments for Rense Nieuwenhuis</title>
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	<link>http://www.rensenieuwenhuis.nl</link>
	<description>&#34;The extra-ordinary lies within the curve of normality&#34;</description>
	<lastBuildDate>Thu, 10 Jan 2019 23:23:44 +0000</lastBuildDate>
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		<title>Comment on In Memoriam: Manfred te Grotenhuis by Harald te Grotenhuis</title>
		<link>http://www.rensenieuwenhuis.nl/in-memoriam-manfred-te-grotenhuis/comment-page-1/#comment-16852</link>
		<dc:creator><![CDATA[Harald te Grotenhuis]]></dc:creator>
		<pubDate>Thu, 10 Jan 2019 23:23:44 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=6253#comment-16852</guid>
		<description><![CDATA[Namens de familie: bedankt voor je woorden. Dit was exact Manfred. Met vriendelijke groet, Harald te Grotenhuis]]></description>
		<content:encoded><![CDATA[<p>Namens de familie: bedankt voor je woorden. Dit was exact Manfred. Met vriendelijke groet, Harald te Grotenhuis</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on In Memoriam: Manfred te Grotenhuis by Jasper 't Jong</title>
		<link>http://www.rensenieuwenhuis.nl/in-memoriam-manfred-te-grotenhuis/comment-page-1/#comment-16837</link>
		<dc:creator><![CDATA[Jasper 't Jong]]></dc:creator>
		<pubDate>Fri, 26 Oct 2018 16:54:32 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=6253#comment-16837</guid>
		<description><![CDATA[Wow. Dat doet me wel wat. Mooi geschreven Rense. Je voelt de persoon.]]></description>
		<content:encoded><![CDATA[<p>Wow. Dat doet me wel wat. Mooi geschreven Rense. Je voelt de persoon.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on In Memoriam: Manfred te Grotenhuis by Caroline Batzdorf</title>
		<link>http://www.rensenieuwenhuis.nl/in-memoriam-manfred-te-grotenhuis/comment-page-1/#comment-16834</link>
		<dc:creator><![CDATA[Caroline Batzdorf]]></dc:creator>
		<pubDate>Sun, 21 Oct 2018 15:33:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=6253#comment-16834</guid>
		<description><![CDATA[I&#039;m so sorry you lost a valuable colleague and friend, one who clearly understood the value of both. May his memory be a blessing, and may the joy he found in his work keep inspiring you in yours.]]></description>
		<content:encoded><![CDATA[<p>I&#8217;m so sorry you lost a valuable colleague and friend, one who clearly understood the value of both. May his memory be a blessing, and may the joy he found in his work keep inspiring you in yours.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on In Memoriam: Manfred te Grotenhuis by W.J.C. Nieuwenhuis</title>
		<link>http://www.rensenieuwenhuis.nl/in-memoriam-manfred-te-grotenhuis/comment-page-1/#comment-16829</link>
		<dc:creator><![CDATA[W.J.C. Nieuwenhuis]]></dc:creator>
		<pubDate>Sat, 20 Oct 2018 12:25:34 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=6253#comment-16829</guid>
		<description><![CDATA[Indrukwekkend! Corrie en Jan]]></description>
		<content:encoded><![CDATA[<p>Indrukwekkend! Corrie en Jan</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on In Memoriam: Manfred te Grotenhuis by Martine</title>
		<link>http://www.rensenieuwenhuis.nl/in-memoriam-manfred-te-grotenhuis/comment-page-1/#comment-16819</link>
		<dc:creator><![CDATA[Martine]]></dc:creator>
		<pubDate>Tue, 16 Oct 2018 19:55:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=6253#comment-16819</guid>
		<description><![CDATA[Mooi verhaal:)]]></description>
		<content:encoded><![CDATA[<p>Mooi verhaal:)</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on A Paradox of Activating Single Parents by a.W.l.</title>
		<link>http://www.rensenieuwenhuis.nl/a-paradox-of-activating-single-parents/comment-page-1/#comment-16701</link>
		<dc:creator><![CDATA[a.W.l.]]></dc:creator>
		<pubDate>Tue, 22 May 2018 18:41:32 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=5959#comment-16701</guid>
		<description><![CDATA[Your last 3 points are spot on with my life experience, its much like watching the light at end of a tunnel getting smaller and smaller every day.]]></description>
		<content:encoded><![CDATA[<p>Your last 3 points are spot on with my life experience, its much like watching the light at end of a tunnel getting smaller and smaller every day.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on R-Sessions 31: Combining lmer output in a single table (UPDATED) by Rense Nieuwenhuis</title>
		<link>http://www.rensenieuwenhuis.nl/r-sessions-31-combining-lmer-output-in-a-single-table/comment-page-1/#comment-16638</link>
		<dc:creator><![CDATA[Rense Nieuwenhuis]]></dc:creator>
		<pubDate>Sun, 10 Dec 2017 14:32:20 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=891#comment-16638</guid>
		<description><![CDATA[Hi!

I could, of course, provide an example of the output, but in fact I would recommend to use the stargazer package: &lt;a href=&quot;https://cran.r-project.org/web/packages/stargazer/index.html&quot; rel=&quot;nofollow&quot;&gt;https://cran.r-project.org/web/packages/stargazer/index.html &lt;/a&gt;. This is an old post, and the function was just a quick fix for a problem I was dealing with back then. Now, much better solutions are available, including the aforementioned stargazer.]]></description>
		<content:encoded><![CDATA[<p>Hi!</p>
<p>I could, of course, provide an example of the output, but in fact I would recommend to use the stargazer package: <a href="https://cran.r-project.org/web/packages/stargazer/index.html" rel="nofollow"></a><a href="https://cran.r-project.org/web/packages/stargazer/index.html" rel="nofollow">https://cran.r-project.org/web/packages/stargazer/index.html</a> . This is an old post, and the function was just a quick fix for a problem I was dealing with back then. Now, much better solutions are available, including the aforementioned stargazer.</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on R-Sessions 31: Combining lmer output in a single table (UPDATED) by Vivyan Cyril</title>
		<link>http://www.rensenieuwenhuis.nl/r-sessions-31-combining-lmer-output-in-a-single-table/comment-page-1/#comment-16637</link>
		<dc:creator><![CDATA[Vivyan Cyril]]></dc:creator>
		<pubDate>Fri, 08 Dec 2017 08:15:07 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=891#comment-16637</guid>
		<description><![CDATA[Can you post how the table looks like?]]></description>
		<content:encoded><![CDATA[<p>Can you post how the table looks like?</p>
]]></content:encoded>
	</item>
	<item>
		<title>Comment on A novel method for modelling interaction between categorical variables by Rense Nieuwenhuis</title>
		<link>http://www.rensenieuwenhuis.nl/a-novel-method-for-modelling-interaction-between-categorical-variables/comment-page-1/#comment-16388</link>
		<dc:creator><![CDATA[Rense Nieuwenhuis]]></dc:creator>
		<pubDate>Wed, 19 Apr 2017 06:14:09 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=6075#comment-16388</guid>
		<description><![CDATA[Hi Mikael,

this is an issue that we are currently thinking about and working on. It would, of course, be very desirable to implement, but we haven&#039;t decided yet on how to do so best. Particularly for the interactions it may be complex. But, for the &#039;regular&#039; weighted effect coding (=without interaction), it should be easy to implement, for instance as follows:

library(questionr)
contr.wecw &lt;- function (x, omitted, w) 
{
  frequencies &lt;- wtd.table(x, weights=w)
  n.cat &lt;- length(table(x))
  omitted &lt;- which(levels(x) == omitted)
  new.contrasts &lt;- contr.treatment(n.cat, base = omitted)
  new.contrasts[omitted, ] &lt;- -1 * frequencies[-omitted]/frequencies[omitted]
  colnames(new.contrasts) &lt;- names(frequencies[-omitted])
  return(new.contrasts)
}]]></description>
		<content:encoded><![CDATA[<p>Hi Mikael,</p>
<p>this is an issue that we are currently thinking about and working on. It would, of course, be very desirable to implement, but we haven&#8217;t decided yet on how to do so best. Particularly for the interactions it may be complex. But, for the &#8216;regular&#8217; weighted effect coding (=without interaction), it should be easy to implement, for instance as follows:</p>
<p>library(questionr)<br />
contr.wecw <- function (x, omitted, w)<br />
{<br />
  frequencies <- wtd.table(x, weights=w)<br />
  n.cat <- length(table(x))<br />
  omitted <- which(levels(x) == omitted)<br />
  new.contrasts <- contr.treatment(n.cat, base = omitted)<br />
  new.contrasts[omitted, ] <- -1 * frequencies[-omitted]/frequencies[omitted]<br />
  colnames(new.contrasts) <- names(frequencies[-omitted])<br />
  return(new.contrasts)<br />
}</p>
]]></content:encoded>
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	<item>
		<title>Comment on A novel method for modelling interaction between categorical variables by Mikael</title>
		<link>http://www.rensenieuwenhuis.nl/a-novel-method-for-modelling-interaction-between-categorical-variables/comment-page-1/#comment-16387</link>
		<dc:creator><![CDATA[Mikael]]></dc:creator>
		<pubDate>Tue, 18 Apr 2017 18:54:35 +0000</pubDate>
		<guid isPermaLink="false">http://www.rensenieuwenhuis.nl/?p=6075#comment-16387</guid>
		<description><![CDATA[Hi, I would be very interested in using the weighted effect coding in my work.  However, I am using mostly weighted regressions (lm(y~x, weights=w)). In that case the counts should be replaced by sum of weights.  What would be the most convenient way to achieve this using &#039;wec&#039;?  Is this possible in the first place?]]></description>
		<content:encoded><![CDATA[<p>Hi, I would be very interested in using the weighted effect coding in my work.  However, I am using mostly weighted regressions (lm(y~x, weights=w)). In that case the counts should be replaced by sum of weights.  What would be the most convenient way to achieve this using &#8216;wec&#8217;?  Is this possible in the first place?</p>
]]></content:encoded>
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