I observed the following behaviour using current cvs on windows:<br><br>string foo = &quot;cpi&quot;<br>matrix m1_cpi = I(2)<br>printf &quot;%.3f\n&quot;, m1_@foo<br><br>results in the message &quot;The symbol &#39;m1_&#39; is undefined&quot;. Is this intended or a bug?<br>
<br>Best,<br>Artur<br>