<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0120-1751</journal-id>
<journal-title><![CDATA[Revista Colombiana de Estadística]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Colomb.Estad.]]></abbrev-journal-title>
<issn>0120-1751</issn>
<publisher>
<publisher-name><![CDATA[Departamento de Estadística - Universidad Nacional de Colombia.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-17512007000200006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Combinación de métodos factoriales y de análisis de conglomerados en R: el paquete FactoClass]]></article-title>
<article-title xml:lang="en"><![CDATA[Combination of Factorial Methods and Cluster Analysis in R: The Package FactoClass]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[PARDO]]></surname>
<given-names><![CDATA[CAMPO ELÍAS]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[DEL CAMPO]]></surname>
<given-names><![CDATA[PEDRO CÉSAR]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Departamento de Estadística]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Departamento de Estadística]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>15</day>
<month>12</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>15</day>
<month>12</month>
<year>2007</year>
</pub-date>
<volume>30</volume>
<numero>2</numero>
<fpage>231</fpage>
<lpage>245</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-17512007000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-17512007000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-17512007000200006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se presenta el paquete de R FactoClass, donde se implementa la estrategia descrita en Lebart et al. (1995), que combina métodos factoriales con análisis de conglomerados, en la exploración multivariada de tablas de datos. Se utilizan funciones de ade4 (Chessel et al. 2004) para realizar el análisis factorial de los datos y de stats para el análisis de conglomerados. Se crean funciones para tareas específicas y se modifican algunas de las existentes. Se describen los pasos para crear FactoClass en ambiente Windows y se ilustra el uso del paquete con un ejemplo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The new R package FactoClass to combine factorial methods and cluster analysis is presented. This package is implemented in order to perform a multivariate exploration of a data table according to Lebart et al. (1995). We use some ade4 functions (Chessel et al. 2004) to perform the factorial analysis of the data and some stats functions in R to perform cluster methods. Some new functions are programmed to make specific tasks and another old ones are modified. We describe the implementation of FactoClass in the Windows environment and illustrate its use with an example.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[software estadístico]]></kwd>
<kwd lng="es"><![CDATA[análisis multivariado]]></kwd>
<kwd lng="es"><![CDATA[análisis en componentes principales]]></kwd>
<kwd lng="es"><![CDATA[análisis de correspondencias]]></kwd>
<kwd lng="es"><![CDATA[K-medias]]></kwd>
<kwd lng="es"><![CDATA[clasificación jerárquica]]></kwd>
<kwd lng="es"><![CDATA[LaTeX]]></kwd>
<kwd lng="en"><![CDATA[Statistical software]]></kwd>
<kwd lng="en"><![CDATA[Multivariate analysis]]></kwd>
<kwd lng="en"><![CDATA[Principal components analysis]]></kwd>
<kwd lng="en"><![CDATA[Correspondence analysis]]></kwd>
<kwd lng="en"><![CDATA[K-means clustering]]></kwd>
<kwd lng="en"><![CDATA[Hierarchical clustering]]></kwd>
<kwd lng="en"><![CDATA[LaTeX]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <font size="2" face="verdana">      <p> <b> <font size="4">     <center> Combinaci&oacute;n de m&eacute;todos factoriales y de an&aacute;lisis de conglomerados en <em>R</em>: el paquete <em>FactoClass</em> </center> </font> </b> </p>      <p> <b> <font size="3">     <center> Combination of Factorial Methods and Cluster Analysis in <em>R</em>: The Package <em>FactoClass</em> </center> </font> </b> </p>      <p>     <center> CAMPO EL&Iacute;AS PARDO<sup>1</sup>,  PEDRO C&Eacute;SAR DEL CAMPO<sup>2</sup> </center> </p>      <p> <sup>1</sup>Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Estad&iacute;stica, Bogot&aacute;, Colombia. Profesor asociado. Email: <a href="mailto:cpardot@unal.edu.co">cpardot@unal.edu.co</a>     <br>  <sup>2</sup>Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Estad&iacute;stica, Bogot&aacute;, Colombia. Estad&iacute;stico. Email: <a href="mailto:pcdelcampon@unal.edu.co">pcdelcampon@unal.edu.co</a>     <br> </p>  <hr size="1">      ]]></body>
<body><![CDATA[<p> <b>     <center> Resumen </center> </b> </p>      <p> Se presenta el paquete de <em>R</em> <em>FactoClass</em>, donde se implementa la estrategia descrita en Lebart et al. (1995), que combina m&eacute;todos factoriales con an&aacute;lisis de conglomerados, en la exploraci&oacute;n multivariada de tablas de datos. Se utilizan funciones de <em>ade4</em> (Chessel et al. 2004) para realizar el an&aacute;lisis factorial de los datos y de <em>stats</em> para el an&aacute;lisis de conglomerados. Se crean funciones para tareas espec&iacute;ficas y se modifican algunas de las existentes. Se describen los pasos para crear <em>FactoClass</em> en ambiente <em>Windows</em> y se ilustra el uso del paquete con un ejemplo. </p>      <p> <b> Palabras clave: </b> <em>software</em> estad&iacute;stico, an&aacute;lisis multivariado, an&aacute;lisis en componentes principales, an&aacute;lisis de correspondencias, K-medias, clasificaci&oacute;n jer&aacute;rquica, LaTeX. </p>  <hr size="1">      <p> <b>     <center> Abstract </center> </b> </p>      <p> The new <em>R</em> package <em>FactoClass</em> to combine factorial methods and cluster analysis is presented. This package is implemented in order to perform a multivariate exploration of a data table according to Lebart et al. (1995). We use some <em>ade4</em> functions (Chessel et al. 2004) to perform the factorial analysis of the data and some <em>stats</em> functions in <em>R</em> to perform cluster methods. Some new functions are programmed to make specific tasks and another old ones are modified. We describe the implementation of <em>FactoClass</em> in the <em>Windows</em> environment and illustrate its use with an example. </p>      <p> <b> Key words: </b> Statistical software, Multivariate analysis, Principal components analysis, Correspondence analysis, K-means clustering, Hierarchical clustering, LaTeX. </p>  <hr size="1">      <p> Texto completo disponible en <a href="pdf/rce/v30n2/v30n2a06.pdf">PDF</a> </p>  <hr size="1">      <p> <b> <font size="3"> Referencias </font> </b> </p>       ]]></body>
<body><![CDATA[<!-- ref --><p> 1. Cazes, P., Chessel, D. & Doledec, S. (1988), &#39;L'analyse des correspondances internes d'un tableau partitionn&eacute;. Son usage en hydrobiologie&#39;, <i>Revue de Statistique Appliqu&eacute;e</i> <b>36</b>(1), 39-54. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000023&pid=S0120-1751200700020000600001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 2. Chessel, D., Dufour, A. B. & Thioulouse, J. (2004), &#39;The ade4 Package - I: One-table Methods&#39;, <i>R News</i> <b>4</b>(1), 5-10. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000024&pid=S0120-1751200700020000600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 3. DAPD, (1997), <i>Poblaci&oacute;n, estratificaci&oacute;n y aspectos socioecon&oacute;micos de Santa Fe de Bogot&aacute;</i>, Departamento Administrativo de Planeaci&oacute;n Distrital, Bogot&aacute;, Colombia. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000025&pid=S0120-1751200700020000600003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 4. Dahl, D. B. (2006), <i>xtable: Export Tables to LaTeX or HTML</i>. David B. Dahl with contributions from many others. R package version 1.4-2.. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000026&pid=S0120-1751200700020000600004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 5. Dalgaard, P. (2002), <i>Introductory Statistics with R</i>, Springer, New York, United States. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000027&pid=S0120-1751200700020000600005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 6. Dalgaard, P. (2005), <i>ISwR: Introductory Statistics with R</i>. R package version 1.0-6. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000028&pid=S0120-1751200700020000600006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 7. De Castro, R. (2003), <i>El universo LaTeX</i>, segunda edn, Universidad Nacional de Colombia, Bogot&aacute;, Colombia language es. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000029&pid=S0120-1751200700020000600007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 8. Friendly, M. (1994), &#39;Mosaic Displays for Multi-Way Contingency Tables&#39;, <i>Journal of the American Statistical Association</i> <b>89</b>(425), 190-200. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000030&pid=S0120-1751200700020000600008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 9. Hartigan, J. A. & Wong, M. A. (1979), &#39;A K-means Clustering Algorithm&#39;, <i>Applied Statistics</i> <b>28</b>(100--108). &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000031&pid=S0120-1751200700020000600009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 10. Husson, F., Lê, S. & Mazet, J. (2007), <i>FactoMineR: Factor Analysis and Data Mining with R</i>. R package version 1.05. *<a href="http://factominer.free.fr">http://factominer.free.fr</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000032&pid=S0120-1751200700020000600010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 11. Lebart, L. (2007), &#39;DTM. Data and Text Mining&#39;, Software. *<a href="http://ses.enst.fr/lebart/">    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000033&pid=S0120-1751200700020000600011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->http://ses.enst.fr/lebart/</a> </p>      <!-- ref --><p> 12. Lebart, L., Morineau, A., Lambert, T. & Pleuvret, P. (1999), <i>SPAD. Système Pour l'Analyse des Donèes</i>, Paris, Francia. *<a href="http://www.spad.eu">http://www.spad.eu</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000035&pid=S0120-1751200700020000600012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 13. Lebart, L., Morineau, A. & Piron, M. (1995), <i>Statisitique exploratoire multidimensionnelle</i>, Dunod, Paris, France. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000036&pid=S0120-1751200700020000600013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 14. Ligges, U. (2006), &#39;R Help Desk: Accessing the Sources&#39;, <i>R News</i> <b>6</b>(4), 43-45. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000037&pid=S0120-1751200700020000600014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 15. Ligges, U. & Murdoch, D. (2005), &#39;R Help Desk: Make &#39;R CMD' Work under Windows - an Example&#39;, <i>R News</i> <b>5</b>(2), 27-28. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000038&pid=S0120-1751200700020000600015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 16. Pardo, C. E. (1992), An&aacute;lisis de la aplicaci&oacute;n del m&eacute;todo de Ward de clasificaci&oacute;n jer&aacute;rquica en el caso de variables cualitativas, Tesis de Maestr&iacute;a, Estad&iacute;stica, Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Matem&aacute;ticas y Estad&iacute;stica, Bogot&aacute;, Colombia. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000039&pid=S0120-1751200700020000600016&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 17. Pinheiro, J., Bates, D., DebRoy, S. & team., D. S. t. R. C. (2007), <i>nlme: Linear and Nonlinear Mixed Effects Models</i>. R package version 3.1-83. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000040&pid=S0120-1751200700020000600017&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 18. R Development Core Team, (2007a), <i>R: A Language and Environment for Statistical Computing</i>, R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0. *<a href="http://www.R-project.org">http://www.R-project.org</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000041&pid=S0120-1751200700020000600018&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 19. R Development Core Team, (2007b), <i>Writing R Extensions</i>, R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0. *<a href="http://www.R-project.org">http://www.R-project.org</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000042&pid=S0120-1751200700020000600019&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><p> Este art&iacute;culo se puede citar en <i>LaTeX</i> utilizando la siguiente referencia bibliogr&aacute;fica de <i>BibTeX</i>: </p> <code><font size="2">@ARTICLE{PardoDel Campo07,    <br> AUTHOR = 	 {Campo El&iacute;as Pardo and Pedro C&eacute;sar Del Campo}    <br> TITLE = 	 {{Combinaci&oacute;n de m&eacute;todos factoriales y de an&aacute;lisis de conglomerados en <em>R</em>: el paquete <em>FactoClass</em>}},    <br> JOURNAL = 	 {Revista Colombiana de Estad&iacute;stica},    <br> YEAR =		 {2007},    <br> volume =	 {30},    <br> number =	 {2},    <br> pages =		 {231-245}    <br> }</font></code>  <hr size="1"> </font>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cazes]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Chessel]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Doledec]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang="fr"><![CDATA[`L'analyse des correspondances internes d'un tableau partitionné. Son usage en hydrobiologie´]]></article-title>
<source><![CDATA[Revue de Statistique Appliquée]]></source>
<year>1988</year>
<volume>36</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>39-54</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chessel]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Dufour]]></surname>
<given-names><![CDATA[A. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Thioulouse]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[`The ade4 Package - I: One-table Methods´]]></article-title>
<source><![CDATA[R News]]></source>
<year>2004</year>
<volume>4</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>5-10</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DAPD]]></surname>
</name>
</person-group>
<source><![CDATA[Población, estratificación y aspectos socioeconómicos de Santa Fe de Bogotá]]></source>
<year>1997</year>
<publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[Departamento Administrativo de Planeación Distrital]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="">
<collab>Dahl, D. B.</collab>
<source><![CDATA[xtable: Export Tables to LaTeX or HTML]]></source>
<year>2006</year>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dalgaard]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Introductory Statistics with R]]></source>
<year>2002</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="">
<collab>Dalgaard, P.</collab>
<source><![CDATA[ISwR: Introductory Statistics with R]]></source>
<year>2005</year>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Castro]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[El universo LaTeX]]></source>
<year>2003</year>
<edition>segunda</edition>
<publisher-loc><![CDATA[Bogotá ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Friendly]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[`Mosaic Displays for Multi-Way Contingency Tables´]]></article-title>
<source><![CDATA[Journal of the American Statistical Association]]></source>
<year>1994</year>
<volume>89</volume>
<numero>425</numero>
<issue>425</issue>
<page-range>190-200</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hartigan]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wong]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[`A K-means Clustering Algorithm´]]></article-title>
<source><![CDATA[Applied Statistics]]></source>
<year>1979</year>
<volume>28</volume>
<numero>100--108</numero>
<issue>100--108</issue>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="">
<collab>Husson, F., Lê, S. & Mazet, J.</collab>
<source><![CDATA[FactoMineR: Factor Analysis and Data Mining with R]]></source>
<year>2007</year>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lebart]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[`DTM. Data and Text Mining´]]></source>
<year>2007</year>
<publisher-name><![CDATA[Software]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="">
<collab>Lebart, L., Morineau, A., Lambert, T. & Pleuvret, P.</collab>
<source><![CDATA[SPAD. Système Pour l'Analyse des Donèes]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Paris ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lebart]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Morineau]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Piron]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Statisitique exploratoire multidimensionnelle]]></source>
<year>1995</year>
<publisher-loc><![CDATA[Paris ]]></publisher-loc>
<publisher-name><![CDATA[Dunod]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ligges]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[`R Help Desk: Accessing the Sources´]]></article-title>
<source><![CDATA[R News]]></source>
<year>2006</year>
<volume>6</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>43-45</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ligges]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Murdoch]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[`R Help Desk: Make `R CMD' Work under Windows - an Example´]]></article-title>
<source><![CDATA[R News]]></source>
<year>2005</year>
<volume>5</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>27-28</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pardo]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Análisis de la aplicación del método de Ward de clasificación jerárquica en el caso de variables cualitativas]]></source>
<year>1992</year>
</nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="">
<collab>Pinheiro, J., Bates, D., DebRoy, S. & team., D. S. t. R. C.</collab>
<source><![CDATA[nlme: Linear and Nonlinear Mixed Effects Models]]></source>
<year>2007</year>
</nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="book">
<collab>R Development Core Team,</collab>
<source><![CDATA[R: A Language and Environment for Statistical Computing]]></source>
<year>2007</year>
<month>a</month>
<publisher-loc><![CDATA[Vienna ]]></publisher-loc>
<publisher-name><![CDATA[R Foundation for Statistical Computing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="book">
<collab>R Development Core Team,</collab>
<source><![CDATA[Writing R Extensions]]></source>
<year>2007</year>
<month>b</month>
<publisher-loc><![CDATA[Vienna ]]></publisher-loc>
<publisher-name><![CDATA[R Foundation for Statistical Computing]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
