<div><font face="'trebuchet ms', sans-serif">Crie um vetor com os pontos médios do intervalo e plote a frequencia versus o ponto médio. Use o nome das classes como rótulo para o eixo x. Veja</font></div><div><font face="'trebuchet ms', sans-serif"><br>
</font></div><div><font face="'courier new', monospace">y <- c(0.3,0.3,0.3)</font></div><div><font face="'courier new', monospace">xlab <- c("0-1","1-3","3-10")</font></div>
<div><font face="'courier new', monospace">xmid <- c(0.5, 2, 6.5)</font></div><div><font face="'courier new', monospace">plot(y~xmid, xaxt="n")</font></div><div><font face="'courier new', monospace">mtext(text=xlab, at=xmid, side=1)</font></div>
<div><font face="trebuchet ms,sans-serif"><br></font></div><div style="font-family:'trebuchet ms',sans-serif"><font face="trebuchet ms,sans-serif">À disposição.</font></div><div style="font-family:'trebuchet ms',sans-serif">
<font face="trebuchet ms,sans-serif">Walmes.</font></div><br clear="all"><span style="font-family:trebuchet ms,sans-serif">==========================================================================</span><br style="font-family:trebuchet ms,sans-serif">
<span style="font-family:trebuchet ms,sans-serif">Walmes Marques Zeviani</span><br style="font-family:trebuchet ms,sans-serif"><span style="font-family:trebuchet ms,sans-serif">LEG (Laboratório de Estatística e Geoinformação, 25.450418 S, 49.231759 W)</span><br style="font-family:trebuchet ms,sans-serif">
<span style="font-family:trebuchet ms,sans-serif">Departamento de Estatística - Universidade Federal do Paraná</span><br style="font-family:trebuchet ms,sans-serif"><span style="font-family:trebuchet ms,sans-serif">fone: (+55) 41 3361 3573</span><br style="font-family:trebuchet ms,sans-serif">
<span style="font-family:trebuchet ms,sans-serif">VoIP: (3361 3600) 1053 1173</span><br style="font-family:trebuchet ms,sans-serif"><span style="font-family:trebuchet ms,sans-serif">e-mail: <a href="mailto:walmes@ufpr.br" target="_blank">walmes@ufpr.br</a></span><br style="font-family:trebuchet ms,sans-serif">
<span style="font-family:trebuchet ms,sans-serif">twitter: @walmeszeviani</span><br style="font-family:trebuchet ms,sans-serif"><span style="font-family:trebuchet ms,sans-serif">homepage: <a href="http://www.leg.ufpr.br/%7Ewalmes" target="_blank">http://www.leg.ufpr.br/~walmes</a></span><br style="font-family:trebuchet ms,sans-serif">
<span style="font-family:trebuchet ms,sans-serif">linux user number: 531218</span><br style="font-family:trebuchet ms,sans-serif"><span style="font-family:trebuchet ms,sans-serif">==========================================================================</span><br>