<span class="gmail_quote"></span><br><div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">> So I can read and plot those attributes without running R inside a GRASS
<br>> session.<br>> Did I understand?<br><br>Yes, exactly. The geometries are stored in GRASS, is that correct?</blockquote><div><br>Yes.<br>Should I store geometries too in MySQL for best performances?<br></div><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">For errors in R of any kind, please include the output of:<br><br>traceback()<br><br>issued immediately after the error.
</blockquote><div><br>I was too hurry, now everything it's ok, the error disappeared using remove.duplicates=TRUE when launching readVECT6, cause some areas "share" the same category in my vector.<br></div><br>I will follow your precious suggestions and send you feedbacks about visualization and data handling.
<br><br>Again.<br>Cheers<br></div>