<div dir="ltr"><div class="gmail_default" style="font-size:small">The error is telling you that you are trying to assign one variable to another, but that the variable on the left side of the "=" is a different size than the one on the right side.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I believe it is this line that's the issue:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="">
<p class="" style="font-size:small"><span class="">times = </span><span class="">wrf_user_getvar</span><span class="">(a,</span><span class="">"times"</span><span class="">,-1) </span>; get all times in the file </p><p class="" style="font-size:small">If each WRF file has a different number of timesteps, then "times" is going to be a different size every time in the loop.</p><p class="" style="font-size:small">You can use the reassignment operator to force the reassignment to happen:</p><p class="" style="font-size:small"><span class="">times := </span><span class="">wrf_user_getvar</span><span class="">(a,</span><span class="">"times"</span><span class="">,-1) </span>; get all times in the file </p><div style="font-size:small">For future reference, you can go to our "error messages" page to find some common errors and how to fix them. See:</div><div style="font-size:small"><br></div><div style=""><a href="http://www.ncl.ucar.edu/Document/Language/error_messages.shtml">http://www.ncl.ucar.edu/Document/Language/error_messages.shtml</a><br></div><div style=""><br></div><div style="">--Mary</div><div style=""><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Dec 30, 2015 at 7:40 PM, Muhammad Omer Mughal <span dir="ltr"><<a href="mailto:m.mughal1@postgrad.curtin.edu.au" target="_blank">m.mughal1@postgrad.curtin.edu.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p>Hi <br>
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<p>I am trying to use the attached script to retrieve wind speed over a couple of wrfoutput files. But I am hitting this error
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<p>fatal:Dimension sizes of left hand side and right hand side of assignment do not match<br>
fatal:["Execute.c":8578]:Execute: Error occurred at or near line 21 in file wrfwindspeed.ncl</p>
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<p>Can anyone help please.<br>
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