<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div><span>Bom dia Pedro!</span></div><div><span><br></span></div><div><span>Estou tendo palestra com o prof. Júlio Singer do IME-USP, e ele passou um site que tem código R para trabalhar com dados categorizados, inclusive com esta estrutura que você está querendo. Segue os links para consulta. Espero que seja útil.</span></div><div><span><br></span></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="http://www.ime.usp.br/~jmsinger/doku.php?id=start">http://www.ime.usp.br/~jmsinger/doku.php?id=start</a><br></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="http://www.math.ist.utl.pt/~dpaulino/">http://www.math.ist.utl.pt/~dpaulino/</a><br></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a
href="http://www.poleto.com/Catdata_Vignette.r">http://www.poleto.com/Catdata_Vignette.r</a><br></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="http://www.poleto.com/">http://www.poleto.com/</a><br></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="http://www.poleto.com/missing.html">http://www.poleto.com/missing.html</a><br></div><div> </div><div>Abraços!</div><div style="background-color:transparent;" align="center"><font style="background-color:transparent;" face="comic sans ms" size="2"><font size="1"><b><br></b></font></font></div><div style="text-align:left;background-color:transparent;" align="center"><font style="background-color:transparent;"><font face="courier, monaco, monospace, sans-serif" size="2">\begin{signature}</font></font></div><div style="text-align:left;background-color:transparent;" align="center"><font style="background-color:transparent;"><font
face="courier, monaco, monospace, sans-serif" size="2"><<>>=</font></font></div><div style="text-align:left;background-color:transparent;" align="center"><font class="Apple-style-span" face="courier, monaco, monospace, sans-serif" size="2">Prof. Dr. Ivan Bezerra Allaman</font></div><div style="text-align:left;background-color:transparent;" align="center"><font class="Apple-style-span" face="courier, monaco, monospace, sans-serif" size="2">Universidade Estadual de Santa Cruz</font></div><div style="text-align:left;background-color:transparent;" align="center"><font class="Apple-style-span" face="courier, monaco, monospace, sans-serif" size="2">Departamento de Ciências Exatas e Tecnológicas</font></div><div style="text-align:left;background-color:transparent;" align="center"><font class="Apple-style-span" face="courier, monaco, monospace, sans-serif" size="2">Ilhéus/BA - Brasil</font></div><div
style="text-align:left;background-color:transparent;" align="center"><font class="Apple-style-span" face="courier, monaco, monospace, sans-serif" size="2">Fone: +55 73 3680-5076</font></div><div style="text-align:left;background-color:transparent;" align="center"><font class="Apple-style-span" face="courier, monaco, monospace, sans-serif" size="2">E-mail: ivanalaman@yahoo.com.br/ivanalaman@gmail.com</font></div><div style="text-align:left;background-color:transparent;" align="center"><font style="background-color:transparent;"><font face="courier, monaco, monospace, sans-serif" size="2">@</font></font></div><div style="text-align:left;background-color:transparent;" align="center"><font style="background-color:transparent;"><font face="courier, monaco, monospace, sans-serif" size="2">\end{signature}</font></font></div></div></body></html>