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    <p>Prezados,</p>
    <p>Tenho este data frame:</p>
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      <colgroup width="227"></colgroup> <colgroup width="85"></colgroup>
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          <td height="17" align="left">intervalo1</td>
          <td align="left">intervalo2</td>
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        <tr>
          <td height="17" align="left"> -10m -17d 0H 0M 0S</td>
          <td align="left"> 1d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -5m -26d 0H 0M 0S</td>
          <td align="left"> 2d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -5m -26d 0H 0M 0S</td>
          <td align="left"> 2d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -12d 0H 0M 0S</td>
          <td align="left"> 3d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -3d 0H 0M 0S</td>
          <td align="left"> 3d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -1d 0H 0M 0S</td>
          <td align="left"> 3d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -1d 0H 0M 0S</td>
          <td align="left"> 4d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -1d 0H 0M 0S</td>
          <td align="left"> 4d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> 0S</td>
          <td align="left"> 4d 0H 0M 0S</td>
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    <p><br>
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    <p>Quero criar um outro que junte estas duas variáveis em uma. Numa
      terceira variavel no mesmo data frame ou em uma variavel noutro
      datra frame.<br>
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          <td height="17" align="left">intervalo3</td>
        </tr>
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          <td height="17" align="left"> -10m -17d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -5m -26d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -5m -26d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -12d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -3d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -1d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -1d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> -1d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> 1d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> 2d 0H 0M 0S</td>
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          <td height="17" align="left"> 2d 0H 0M 0S</td>
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        <tr>
          <td height="17" align="left"> 3d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> 3d 0H 0M 0S</td>
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        <tr>
          <td height="17" align="left"> 3d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> 4d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> 4d 0H 0M 0S</td>
        </tr>
        <tr>
          <td height="17" align="left"> 4d 0H 0M 0S</td>
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    <p>Agradeço a ajuda.<br>
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