<div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif;font-size:small;color:rgb(0,0,0)">Dear Andrew</div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif;font-size:small;color:rgb(0,0,0);display:inline">Thanks for your reply.</div></div><div dir="ltr"><font color="#000000" face="georgia, serif"><br></font></div><div dir="ltr"><font color="#000000" face="georgia, serif"><div class="gmail_default" style="font-family:georgia,serif;font-size:small;color:rgb(0,0,0);display:inline">I have no problem in opening or displaying file.</div></font></div><div dir="ltr"><font color="#000000" face="georgia, serif"><br></font></div><div dir="ltr"><font color="#000000" face="georgia, serif"><div class="gmail_default" style="font-family:georgia,serif;font-size:small;color:rgb(0,0,0);display:inline">Following is what I get when I query dimensions;</div></font></div><div dir="ltr"><font color="#000000" face="georgia, serif"><div class="gmail_default" style="font-family:georgia,serif;font-size:small;color:rgb(0,0,0);display:inline"><br></div></font></div><div dir="ltr">ga-> q dim</div><div dir="ltr">Default file number is: 1</div><div dir="ltr">X is varying Lon = 33 to 60 X = 1 to 55</div><div dir="ltr">Y is varying Lat = 12 to 33 Y = 1 to 43</div><div dir="ltr">Z is fixed Lev = 0 Z = 1</div><div dir="ltr">T is varying Time = 00Z01JAN1981 to 00Z01DEC2010 T = 1 to 360<br></div><div dir="ltr">E is fixed Ens = 1 E = 1</div><div dir="ltr"><font color="#000000" face="georgia, serif"><div class="gmail_default" style="font-family:georgia,serif;font-size:small;color:rgb(0,0,0);display:inline"></div></font></div><div dir="ltr"><font color="#000000" face="georgia, serif"><div class="gmail_default" style="font-family:georgia,serif;font-size:small;color:rgb(0,0,0);display:inline">Best Regards</div><br></font><i>Dr. MUHAMMAD AFZAAL </i><br><br><br></div></div></div></div>
<br><div class="gmail_quote">On Thu, Dec 28, 2017 at 1:42 AM, Andrew Friedman <span dir="ltr"><<a href="mailto:andfried@gmail.com" target="_blank">andfried@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Muhammad,<br>
<br>
Are you able to open the file and plot the data?<br>
What do you get when you type ‘q dims’?<br>
<br>
-Andrew<br>
<div><div class="gmail-h5"><br>
> On Dec 26, 2017, at 11:47 PM, Dr. Muhammad Afzaal <<a href="mailto:afzaalkarori@gmail.com">afzaalkarori@gmail.com</a>> wrote:<br>
><br>
> Dear Fellows<br>
><br>
> I am trying to calculate linear trend (Grads V2.0.1 on ubuntu 13);<br>
><br>
> 'sdfopen Era_RH_1981.nc'<br>
> 'set t 1 last'<br>
> 'ltrend r rh slope error' ;*r is the input variable<br>
><br>
> But got the error;<br>
><br>
> SET error: Missing or invalid arguments for X option<br>
> SET error: Missing or invalid arguments for Y option<br>
> SET error: Missing or invalid arguments for T option<br>
> Syntax Error: Invalid dimension expression<br>
> Dimension value missing or invalid<br>
> Error from SUM: 1st dimension expression invalid<br>
> Operation Error: Error from sum function<br>
> Operation Error: Error from tloop function<br>
> Error ocurred at column 1<br>
> .............<br>
> .............<br>
><br>
> Tried many options but could not resolve. Can anybody help me solve this problem<br>
><br>
> Following is file info;<br>
><br>
> dimensions:<br>
> longitude = 55<br>
> latitude = 43<br>
> time = 360 // unlimited<br>
> variables:<br>
> float longitude ( longitude )<br>
> standard_name : longitude<br>
> long_name : longitude<br>
> units : degrees_east<br>
> axis : X<br>
><br>
> float latitude ( latitude )<br>
> standard_name : latitude<br>
> long_name : latitude<br>
> units : degrees_north<br>
> axis : Y<br>
><br>
> double time ( time )<br>
> standard_name : time<br>
> units : hours since 1900-01-01 00:00:00<br>
> calendar : standard<br>
><br>
> float r ( time, latitude, longitude )<br>
> standard_name : relative_humidity<br>
> long_name : Relative humidity<br>
> units : %<br>
> _FillValue : -32767<br>
><br>
><br>
> Thanking in anticipation<br>
><br>
> Dr. MUHAMMAD AFZAAL<br>
><br>
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