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    <div class="moz-cite-prefix">Hola amigos:<br>
      <br>
      Ya estoy viendo "merge", no entiendo bien a que se refieren cuando
      dicen que UPS  está o no en el otro dataframe, en cada dataframe,
      tengo solo dos columnas, "respaldo eléctrico" es un solo campo. Ya
      estuve viendo la ayuda, y por lo que se muestra, con "merge" puedo
      hacer exactamente lo que quiero, probaré y les daré respuesta.<br>
      <br>
      Un saludo<br>
      <br>
      Leonardo<br>
      <br>
       <br>
      <br>
      On 01/08/12 18:49, Jorge I Velez wrote:<br>
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cite="mid:CAKL8G3F-oAi7w8MPNb2UNGX0nBidbg+bcn7xKCORLGxyCjkdfg@mail.gmail.com"
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      Hola Javier:   Ahora entiendo a que te referias; t<span>ienes toda
        la razon.  Creo que lo mejor en este caso es esperar a que
        Leonardo nos de un poco mas de informacion acerca de lo que
        planea hacer. A partir de ello podremos darle una mejor solucion
        :)    --JIV</span>
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        <div>Sent from my phone. Please excuse my brevity and
          misspelling. </div>
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            <div class="gmail_quote">2012/8/1 Marcuzzi, Javier Rubén <span
                dir="ltr"><></span><br>
              <blockquote class="gmail_quote">
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                      <div>Jorge</div>
                      <div> </div>
                      <div>No se, puede que yo esté confundido, usted
                        sabe más que yo, pero expresado de otra forma,
                        yo me refería a esto: de la documentación ...</div>
                      <div> </div>
                      <div><span>In SQL database terminology, the
                          default value of<span> </span></span><code>all
                          = FALSE</code><span><span> </span>gives a<span> </span></span><em>natural
                          join</em><span>, a special case of an<span> </span></span><em>inner
                          join</em><span>. Specifying<span> </span></span><code>all.x
                          = TRUE</code><span><span> </span>gives a<span> </span></span><em>left
                          (outer) join</em><span>,<span> </span></span><code>all.y
                          = TRUE</code><span><span> </span>a<span> </span></span><em>right
                          (outer) join</em><span>, and both (</span><code>all
                          = TRUE</code><span><span> </span>a<span> </span></span><em>(full)
                          outer join</em><span>. DBMSes do not match<span> </span></span><code>NULL</code><span><span> </span>records,
                          equivalent to<span> </span></span><code>incomparables
                          = NA</code><span><span> </span>in<span> </span></span><b>R</b><span>.</span>
                      </div>
                      <div> </div>
                      <div>Yo recuerdo que me dio trabajo hasta que
                        puede mezclar unos datos. </div>
                      <div> </div>
                      <div>Javier</div>
                      <div>
                        <div>
                          <div> </div>
                          <div>
                            <div><b>From:</b> <a moz-do-not-send="true"
                                title="jorgeivanvelez@gmail.com"
                                href="mailto:jorgeivanvelez@gmail.com"
                                target="_blank">Jorge I Velez</a> </div>
                            <div><b>Sent:</b> Wednesday, August 01, 2012
                              7:26 PM</div>
                            <div><b>To:</b> <a moz-do-not-send="true"
                                title="javier.ruben.marcuzzi@gmail.com"
href="mailto:javier.ruben.marcuzzi@gmail.com" target="_blank">Marcuzzi,
                                Javier Rubén</a> </div>
                            <div><b>Cc:</b> <a moz-do-not-send="true"
                                title="leonardo.hernandez@etecsa.cu"
                                href="mailto:leonardo.hernandez@etecsa.cu"
                                target="_blank">Leonardo Hernández Pérez</a>
                              ; <a moz-do-not-send="true"
                                title="r-help-es@r-project.org"
                                href="mailto:r-help-es@r-project.org"
                                target="_blank">r-help-es@r-project.org</a>
                            </div>
                            <div>
                              <div class="h5">
                                <div><b>Subject:</b> Re: [R-es] función
                                  para relacionar dos columnas</div>
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                        <div> </div>
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                        <div class="h5">
                          <div>Gracias, Javier.  Solo para aclarar:  UPS
                            *si* esta en el "otro" data.frame().  Ahora,
                            en caso de que no este, merge() no lo
                            rastreara.   --JIV
                            <div><br>
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                                <div> </div>
                                <div class="gmail_quote">2012/8/1
                                  Marcuzzi, Javier Rubén <span
                                    dir="ltr"><></span><br>
                                  <blockquote class="gmail_quote">Leonardo<br>
                                    <br>
                                    Yo estoy de acuerdo con Jorge, lo
                                    único que tiene que pensar en lo
                                    siguiente, ¿en algunas columnas hay
                                    datos que no están en la otra?,
                                    porque por ejemplo UPS no tiene nada
                                    en el otro dataframe, entonces, ¿que
                                    desea realizar con UPS?. Porque de
                                    acuerdo a lo que usted decida en el
                                    nuevo dataframe UPS (el faltante)
                                    puede o no estar presente.<br>
                                    <br>
                                    Javier Marcuzzi<br>
                                    <br>
                                    <br>
                                    <br>
                                    -----Mensaje original----- From:
                                    Jorge I Velez<br>
                                    Sent: Wednesday, August 01, 2012
                                    6:32 PM<br>
                                    To: Leonardo Hernández Pérez<br>
                                    Cc: <a moz-do-not-send="true"
                                      href="mailto:r-help-es@r-project.org"
                                      target="_blank">r-help-es@r-project.org</a><br>
                                    Subject: Re: [R-es] función para
                                    relacionar dos columnas
                                    <div>
                                      <div><br>
                                        <br>
                                        Hola Leonardo,<br>
                                        <br>
                                        Lo que buscas puedes hacerlo con
                                        la funcion merge().  Solo
                                        necesitas que<br>
                                        los dos data.frame()s tengan una
                                        columna en comun; en este caso
                                        ese nombre<br>
                                        seria, por ejemplo, "sigla".<br>
                                        <br>
                                        Dale una mirada a ?merge para
                                        mas informacion.<br>
                                        <br>
                                        Un saludo,<br>
                                        Jorge.-<br>
                                        <br>
                                        <br>
                                        2012/8/1 Leonardo Hernández
                                        Pérez <><br>
                                        <br>
                                        <blockquote class="gmail_quote"><br>
                                          Hola amigos:<br>
                                          <br>
                                          Tengo un dataframe con dos
                                          columnas<br>
                                          <br>
                                          <br>
                                          UPS 23<br>
                                          PC   58<br>
                                          IMP 12<br>
                                          MON 58<br>
                                          <br>
                                          y otro dataframe con otras
                                          tantas<br>
                                          <br>
                                          PC   computo<br>
                                          MON display<br>
                                          IMP printers<br>
                                          UPS respaldo eléctrico<br>
                                          <br>
                                          Existe alguna función con la
                                          que pueda crear un nuevo
                                          dataframe que<br>
                                          contenga el siguiente
                                          resultado????<br>
                                          <br>
                                          UPS     respaldo eléctrico    
                                          23<br>
                                          PC      
                                          computo                    58<br>
                                          IMP    
                                          printers                     
                                          12<br>
                                          MON    
                                          display                     
                                          58<br>
                                          <br>
                                          <br>
                                          Es decir, que relacione las
                                          columnas a partir del elemento
                                          que tienen en<br>
                                          común<br>
                                          <br>
                                          Un saludo,<br>
                                          <br>
                                          Leonardo<br>
                                          <br>
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