<div dir="ltr"><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">Até onde precisei usei merge(). Porém, por suspeita fiz uma busquinha no google agora e tem como deixar mais rápido usando o pacote data.table ou sqldf. Seguem links<br><br><a href="http://stackoverflow.com/questions/11146967/efficient-alternatives-to-merge-for-larger-data-frames-r">http://stackoverflow.com/questions/11146967/efficient-alternatives-to-merge-for-larger-data-frames-r</a><br><a href="http://stackoverflow.com/questions/4322219/whats-the-fastest-way-to-merge-join-data-frames-in-r">http://stackoverflow.com/questions/4322219/whats-the-fastest-way-to-merge-join-data-frames-in-r</a><br><br>À disposição.<br>Walmes.<br></div>​</div>