[R-es] abrir varios archivos a la vez y colocarlos en un mismo data frame
An embedded and charset-unspecified text was scrubbed... Name: no disponible URL: <https://stat.ethz.ch/pipermail/r-help-es/attachments/20140707/83813c49/attachment.pl>
An embedded and charset-unspecified text was scrubbed... Name: no disponible URL: <https://stat.ethz.ch/pipermail/r-help-es/attachments/20140707/83813c49/attachment.pl>