<div dir="ltr"><div><div>Hi,<br></div>Please help me to fix this bug? Here is part of my code and the error I get<br>x4d  = reshape(precppicktimeAMJJAS,(/183,4,26,76/))<br>print(x4d(:,:,0,0))<br>;printVarSummary(precppicktimeAMJJAS)  ;print out structure/basic info of the data<br>printVarSummary(x4d)  ;print out structure/basic info of the data<br><br>xSumLon = dim_sum_n(x4d,1)<br>printVarSummary(xSumLon)  ;print out structure/basic info of the data<br>xSumLon!0=&quot;time&quot; ;added by feng<br>xSumLon!1=&quot;lat&quot; ;added by feng<br>xSumLon!2=&quot;lon&quot; ;added by feng<br>xSumLon&amp;lat = x4d(0,0,:,0)<br>xSumLon&amp;lon = x4d(0,0,0,:)<br>xd=xSumLon<br>;;;;;;;;;Areal average;;;;;;;;;;;;;;;;;;;;;;<br>printVarSummary(xSumLon)<br>zAvgLon = dim_avg_n_Wrap(xSumLon,(0))<br>printVarSummary(zAvgLon)<br>printMinMax(zAvgLon,0)<br>print(zAvgLon)<br>(0)    check_for_y_lat_coord: Warning: Data either does not contain a valid latitude coordinate array or doesn&#39;t contain one at all.<br>(0)    A valid latitude coordinate array should have a &#39;units&#39; attribute equal to one of the following values: <br>(0)    Â Â Â  &#39;degrees_north&#39; &#39;degrees-north&#39; &#39;degree_north&#39; &#39;degrees north&#39; &#39;degrees_N&#39; &#39;Degrees_north&#39; &#39;degree_N&#39; &#39;degreeN&#39; &#39;degreesN&#39; &#39;deg north&#39;<br>(0)    check_for_lon_coord: Warning: Data either does not contain a valid longitude coordinate array or doesn&#39;t contain one at all.<br>(0)    A valid longitude coordinate array should have a &#39;units&#39; attribute equal to one of the following values: <br>(0)    Â Â Â  &#39;degrees_east&#39; &#39;degrees-east&#39; &#39;degree_east&#39; &#39;degrees east&#39; &#39;degrees_E&#39; &#39;Degrees_east&#39; &#39;degree_E&#39; &#39;degreeE&#39; &#39;degreesE&#39; &#39;deg east&#39;<br><br></div>Thank you,<br><br><div><br></div></div>