<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Thank you for pointing out this problem. Putting GrADS 2.0.a6 behind GDS does require a 1-line fix (adding "set undef file 1") to one of the GDS scripts that creates file subsets. I have <span class="Apple-style-span" style="font-family: Arial; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">patched the monsoondata.org GDS, and <span class="Apple-style-span" style="font-family: Helvetica; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; ">added the following message to the GDS home page: </span></span></div><div><br></div><div><span class="Apple-style-span" style="font-family: Arial; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><span class="style1" style="color: rgb(153, 0, 0); "><strong><em>Important Note for GDS Administrators (June 2009)</em></strong>:</span> The recent release of GrADS (version 2.0.a6) implemented some necessary changes related to the handling of undefined values. These changes can affect the GDS. If you are administering a GDS version 2.0 with GrADS 2.0.a6 behind it, then a 1-line patch is needed for the file $GDSHOME/scripts/subset.gs. The patched version is <a href="http://iges.org/grads/gds/patched_subset.gs">http://iges.org/grads/gds/patched_subset.gs</a>. <span class="Apple-style-span" style="font-family: Helvetica; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; ">Updating the subset.gs script does not require a reinstallation or even a reload of your GDS. </span></span></div><div><font class="Apple-style-span" face="Arial"><span class="Apple-style-span" style="-webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><br></span></font></div><div><font class="Apple-style-span" face="Arial"><span class="Apple-style-span" style="-webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;">--Jennifer</span></font></div><div><font class="Apple-style-span" face="Arial"><span class="Apple-style-span" style="-webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;"><br></span></font></div><br><div><div>On Jun 10, 2009, at 10:35 PM, Arlindo da Silva wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Jennifer,<div><br></div><div> I am having some problems with undef handling in 2.0.a6. Using COLA's Mac OS X build (intel):</div><div><br></div><div>./gradsdap</div><div>...</div><div>ga-> sdfopen <a href="http://monsoondata.org:9090/dods/model">http://monsoondata.org:9090/dods/model</a></div> <div>ga-> d ua</div><div>Contouring: -9e+08 to 0 interval 1e+08<br></div><div><br></div><div>It does not seem to be handling UNDEFs properly. Which grads version is behind the monsoondata GDS?</div><div><br></div></blockquote></div></body></html>