<div dir="ltr">Olá Manoel, obrigado pela tua mensagem.<div><br></div><div>Dados raster são imagens que contêm a descrição de cada pixel, em oposição aos vetores. Grossamente, pode-se dizer que é um "mapa" onde cada pixel representa um valor. No meu caso, valores binários (0,1) sobre presença/ausência de um fenômeno qualquer.<br></div><div><br></div><div>Levemos em consideração o exemplo que dei no stackoverflow (<a href="http://stackoverflow.com/questions/36271393/r-unmelt-a-melted-dataframe-back-to-original-dimensions">http://stackoverflow.com/questions/36271393/r-unmelt-a-melted-dataframe-back-to-original-dimensions</a>):</div><div><br></div><div><div>> df</div><div> y x</div><div> 1 27 1</div><div> 2 27 1</div><div> 3 27 0</div><div> 4 27 1</div><div> 5 27 0</div><div> 6 27 0</div><div> 7 27 0</div><div> 8 27 1</div><div> 9 27 1</div><div> 10 27.5 1</div><div> 11 27.5 1</div><div> 12 27.5 0</div><div> 13 27.5 1</div><div> 14 27.5 0</div><div> 15 27.5 0</div><div> 16 27.5 0</div><div> 17 27.5 1</div><div> 18 27.5 1</div></div><div><br></div><div>O resultado que preciso são objetos (do tipo raster), um para cada valor de y, com dimensões, digamos aqui, 3x3. </div><div>Eu sei que posso atingir esse resultado através de r1 <- <span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">raster</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">(</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">matrix</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">(</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">df</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">$</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">x</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">[</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:maroon;background-color:rgb(238,238,238)">1:9</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">],</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:maroon;background-color:rgb(238,238,238)">3</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">,</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:maroon;background-color:rgb(238,238,238)">3</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">,</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">byrow</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">=</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">T</span><span class="" style="font-family:Consolas,Menlo,Monaco,'Lucida Console','Liberation Mono','DejaVu Sans Mono','Bitstream Vera Sans Mono','Courier New',monospace,sans-serif;white-space:inherit;font-size:13px;margin:0px;padding:0px;border:0px;color:black;background-color:rgb(238,238,238)">)).</span></div><div>O caso é que eu precisaria de algo mais automatizado, que me separasse, a cada 9 linhas (nesse exemplo), um objeto cujo nome fosse df.new.(valor de y correspondente).</div><div>Espero ter conseguido ser claro. Se ficar em dúvida ainda, e puder ajudar, escreva ou dê uma olhada no <a href="http://stackoverflow.com/questions/36271393/r-unmelt-a-melted-dataframe-back-to-original-dimensions">post</a>.</div><div><br></div><div>Obtrigado e um abraços</div><div><br></div><div> </div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">Em 29 de março de 2016 17:01, Manoel Galdino <span dir="ltr"><<a href="mailto:mcz.fea@gmail.com" target="_blank">mcz.fea@gmail.com</a>></span> escreveu:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>O que você quer dizer por raster? Eu não entendi direito o que você quer. Você quer uma lista com 23 objetos?<br></div>Dê um exemplo reproduzível menor, digamos com y assumindo dois valores, e qual seria o output neste caso particular.<br><br></div>abcs,<br></div>Manoel<br></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">2016-03-29 17:52 GMT-03:00 Jefferson Ferreira-Ferreira <span dir="ltr"><<a href="mailto:jecogeo@gmail.com" target="_blank">jecogeo@gmail.com</a>></span>:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr"><div>Pessoal, estou com uma questão aberta no stackoverflow. Se alguém puder ajudar, eu ficaria muito grato!</div><div><br></div><div><a href="http://stackoverflow.com/questions/36271393/r-unmelt-a-melted-dataframe-back-to-original-dimensions" target="_blank">http://stackoverflow.com/questions/36271393/r-unmelt-a-melted-dataframe-back-to-original-dimensions</a><br></div><div><br></div><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div style="text-align:left"><p style="margin-bottom:0.0001pt;line-height:normal"></p><p style="margin:0px;font-family:Tahoma,Helvetica,sans-serif;font-size:13px;text-align:-webkit-auto"><b><i><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)">Jefferson Ferreira-Ferreira</span></i></b></p><p style="margin:0px;font-family:Tahoma,Helvetica,sans-serif;font-size:13px;text-align:-webkit-auto"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:gray">Geógrafo – GEOPROCESSAMENTO IDSM | Coordenadoria de TI</span></p><p style="margin:0px;text-align:-webkit-auto"><img src="https://imageshack.com/a/img924/3023/UGEtug.png"><br></p><p style="margin:0px;font-family:Tahoma,Helvetica,sans-serif;font-size:13px;text-align:-webkit-auto"></p><p style="margin:0px;font-family:Tahoma,Helvetica,sans-serif;font-size:13px;text-align:-webkit-auto"><span style="font-family:Calibri,sans-serif;font-size:11pt"><a href="mailto:Jefferson.ferreira@mamiraua.org.br" target="_blank">Jefferson.ferreira@mamiraua.org.br</a></span></p><p style="margin:0px;font-family:Tahoma,Helvetica,sans-serif;font-size:13px;text-align:-webkit-auto"><b><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3,69,20)">Instituto de Desenvolvimento Sustentável Mamirauá</span></b></p><p style="margin:0px;font-family:Tahoma,Helvetica,sans-serif;font-size:13px;text-align:-webkit-auto"></p><p style="margin:0px"><font><font size="2">Ministério da Ciência, Tecnologia e Inovação</font></font></p><p style="margin:0px"><font size="2">Telefone: <a href="tel:%2B55%2097%203343-9710" value="+559733439710" target="_blank">+55 97 3343-9710</a></font></p><p style="margin:0px"></p><p style="margin:0px;color:rgb(34,34,34);font-family:tahoma,helvetica,sans-serif;background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif;font-size:9pt"></span><img src="https://imageshack.com/a/img922/761/fPeXJi.png" style="font-family:arial,sans-serif;font-size:12.8px"><b style="font-family:arial,sans-serif"><span style="font-size:9pt;font-family:Arial,sans-serif">Google Maps</span></b><span style="font-size:9pt;font-family:Arial,sans-serif"> - Mapas deste e-mail</span><span style="font-family:arial,sans-serif;font-size:9pt">:</span></p><p style="margin:0px;color:rgb(34,34,34);font-family:tahoma,helvetica,sans-serif;background-color:rgb(255,255,255)"></p><p style="margin:0px;color:rgb(34,34,34);font-family:arial,sans-serif;background-color:rgb(255,255,255)"><img src="https://imageshack.com/a/img921/7894/xDTJEU.png" style="font-size:12.8px"><span style="color:rgb(17,85,204);font-size:9pt;font-family:'Times New Roman',serif"><span style="color:blue"><a href="https://maps.google.com.br/maps?q=-3.355557,-64.731151&ll=-3.355471,-64.731145&spn=0.004632,0.006968&num=1&t=h&z=18" style="color:rgb(17,85,204)" target="_blank">Exibir <span style="color:rgb(34,34,34);background-color:rgb(255,255,204)">mapa</span> ampliado</a></span></span></p><p></p><p></p><i><br>Contatos particulares:</i></div><div style="text-align:left"><i><a href="tel:%2855%29%209615-0100" value="+555596150100" target="_blank">(55) 9615-0100</a></i><br></div></div></div><br></div></div>
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