<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div id="yiv368885532"><div><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: times new roman,new york,times,serif; font-size: 12pt;"><div>Thanks Kieren for your reply.</div><div>As you suggest, I tried only the following lines <br></div><div><br></div><div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white; color: rgb(0, 64, 127);"><span>'sdfopen
/home/precis/wind/uwnd.nc'<br>
'sdfopen /home/precis/precip/prate_Interp.nc'<br>
<br>
'set lat -90 90'<br>
'set lon -180 180'<br>
'set lev 1000 100'<br>
'set t 1 2'</span></div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white; color: rgb(0, 64, 127);"> </div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white; color: rgb(0, 64, 127);">‘set
dfile 2’</div>
<div style="color: rgb(0, 64, 127);" class="yiv368885532MsoNormal"><span>'pre = prate.2*86400'</span></div><div><br><span></span></div><div><span>But I got the following error:</span></div><div><span><br></span></div><div><span><span style="color: rgb(0, 64, 127);">Data Request Warning: Request is completely outside file limits </span><br style="color: rgb(0, 64, 127);"><span style="color: rgb(0, 64, 127);">Define Error: Unable to allocate data memory </span><br style="color:
rgb(0, 64, 127);"><span style="color: rgb(0, 64, 127);"> Size of request was -19031830 grid elements </span><br style="color: rgb(0, 64, 127);"><span style="color: rgb(0, 64, 127);">*** glibc detected *** grads: double free or corruption (!prev): 0x08b07620 *** </span> </span></div><div> <br>What's wrong!!<br><br>After that, the GUI interface goes off. Wind data is 4D (t,lev,lat,lon) and precip 3D (t,lev,lat,lon). Dimensions of coordinates t,lat,lon are the same for both variables.<br><br>Thanks<br>Wilfied</div><div><br></div> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"> <div
style="font-family: times new roman,new york,times,serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight: bold;">De :</span></b> "Marsh, Kieren" <k.marsh@geos-uae.com><br> <b><span style="font-weight: bold;">À :</span></b> wilfried pokam <wpokam@yahoo.fr>; GrADS Users Forum <gradsusr@gradsusr.org> <br> <b><span style="font-weight: bold;">Envoyé le :</span></b> Mardi 13 mars 2012 11h03<br> <b><span style="font-weight: bold;">Objet :</span></b> RE: [gradsusr] Performs array assignments based on a conditional array<br> </font> </div> <br><div id="yiv368885532">
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<div class="yiv368885532MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">You need to specify to GrADS which file to usesing set dfile:</span></div>
<div class="yiv368885532MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"> </span></div>
<div class="yiv368885532MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">See my ‘set dfile’ additions below (this assumes you sdfopen the
files in the order you specify)</span></div>
<div class="yiv368885532MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"> </span></div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;">'sdfopen
/home/precis/wind/uwnd.nc'<br>
'sdfopen /home/precis/precip/prate_Interp.nc'<br>
<br>
'set lat -90 90'<br>
'set lon -180 180'<br>
'set lev 1000 100'<br>
'set t 1 2'</span></div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;"> </span></div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;">‘set
dfile 2’</span></div>
<div class="yiv368885532MsoNormal"><span style="color: black;">'pre = prate.3*86400'</span></div>
<div class="yiv368885532MsoNormal"><span style="color: black;">‘set dfile 1’<br>
'p = const(maskout(uwnd.1,pre-1),0,-u)</span><span style="font-size: 11pt; color: rgb(31, 73, 125);"></span></div>
<div class="yiv368885532MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"> </span></div>
<div>
<div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223); padding: 3pt 0cm 0cm;">
<div class="yiv368885532MsoNormal"><b><span style="font-size: 10pt;" lang="EN-US">From:</span></b><span style="font-size: 10pt;" lang="EN-US"> gradsusr-bounces@gradsusr.org
[mailto:gradsusr-bounces@gradsusr.org] <b>On Behalf Of </b>wilfried pokam<br>
<b>Sent:</b> 13 March 2012 13:06<br>
<b>To:</b> gradsusers; GrADS Users Forum<br>
<b>Subject:</b> [gradsusr] Performs array assignments based on a conditional
array</span></div>
</div>
</div>
<div class="yiv368885532MsoNormal"> </div>
<div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;">Hello
Grads users,</span></div>
</div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;"> </span></div>
</div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;">I want to
assign to the wind zonal wind (at all vertical levels) the value 0 at
grid points where the precipitation is less than 10mm/day. I tried the
following, but I have an error</span></div>
</div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;">-------------------------------------------------------------<br>
'sdfopen /home/precis/wind/uwnd.nc'<br>
'sdfopen /home/precis/precip/prate_Interp.nc'<br>
<br>
'set lat -90 90'<br>
'set lon -180 180'<br>
'set lev 1000 100'<br>
'set t 1 2'</span></div>
</div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;"> </span></div>
</div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;">'pre =
prate.3*86400'<br>
'p = const(maskout(uwnd.1,pre-1),0,-u)<br>
----------------------------------------------------</span></div>
</div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;"> </span></div>
</div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;">Both
'uwnd.nc' and 'prate_Interp.nc' are on the same horizontal grids.</span></div>
</div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;"> </span></div>
</div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;" lang="EN-US">Any
help would be appreciated<br>
<br>
Regards<br>
Wilfried</span><span style="color: black;"></span></div>
<div>
<div class="yiv368885532MsoNormal" style="background: none repeat scroll 0% 0% white;"><span style="color: black;"> <br></span></div></div><div><div><div class="yiv368885532MsoNormal" style="margin-bottom: 12pt; background: none repeat scroll 0% 0% white;"><span style="color: black;"><br>
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