<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt;color:#000000;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: black;"><div>Dear GrADS Users,<br><br>I'm trying to use GrADS to plot a <span style="border-bottom: 2px dotted rgb(54, 99, 136); background: transparent none repeat scroll 0% 0%; cursor: pointer; -moz-background-clip: border; -moz-background-origin: padding; -moz-background-inline-policy: continuous;" class="yshortcuts" id="lw_1281624704_0">line graph</span> with some nc files. But I don't know what's the problem that it can not make a graph. You can find the error message and also script in the following. <br>Any suggestion would be appreciated.<br><br>Thanks,<br>Abbas<br><br><br><br>Error: <br><span style="color: rgb(255, 0, 0);">Cannot plot data - all undefined
values</span><br>**********************************<br><br> 'reinit'<br>'sdfopen /host/DATA/Temp600-200mb<a target="_blank" href="http://-1apr-31oct-dailymean-1990.nc/"><span class="yshortcuts" id="lw_1281624704_1">-1Apr-31Oct-Dailymean-1990.nc</span></a>'<br>'sdfopen /host/DATA/Temp600-200mb<a target="_blank" href="http://-1apr-31oct-dailymean-1991.nc/"><span class="yshortcuts" id="lw_1281624704_2">-1Apr-31Oct-Dailymean-1991.nc</span></a>'
<br> 'set dfile 1'
<br> 'set t 1 214'<br> 'set lon 30 110'
<br> 'set lat -15 35'<br> 'set lev 600 200'<br> 'define a1 = air'<br>********************************<br> 'set dfile 2'
<br> 'set t 1 214'<br> 'set lon 30 110'
<br> 'set lat -15 35'<br> 'set lev 600 200'<br> 'define a2 = air'<br>**********====Average====********<br> 'define a3 = (a1+a2)/2'<br><br> 'define t1 = aave(a3,lon=40,lon=100,lat=-15,lat=5)'
<br> 'define t2 = aave(a3,lon=40,lon=100,lat=15,lat=35)'<br> 'define tt1 = ave(t1,z=1,z=6)'
<br> 'define tt2 = ave(t2,z=1,z=6)'<br> 'define p1 = tt1-tt2'<br><br> 'reset'<br><br> 'set t 25 205'<br> 'set lon 62.5'
<br> 'set lat 27.5'<br> 'set lev 200'<br><br> 'set gxout line'
<br> 'set grid on 5 1'
<br> 'set grads off'
<br> 'set vrange -6 6'
<br> 'set clevs -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 8 10'<br> 'set line 1 1 10'<br> 'display p1'<br>***************************<br></div>
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