<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title></title><style type="text/css">.felamimail-body-blockquote {margin: 5px 10px 0 3px;padding-left: 10px;border-left: 2px solid #000088;} </style></head><body>Hello All<br><br>I have a recurring error of: <br><h1>Re: warning:Attempt to reference attribute (_FillValue)
which is undefined which gives me values of -nan.</h1><p>No matter how i try to resolve this using ncl online missing values definition table: https://www.ncl.ucar.edu/Document/Language/fillval.shtml</p><p>or from examples from the Forum: https://www.ncl.ucar.edu/Support/talk_archives/2014/1573.html https://www.ncl.ucar.edu/Support/talk_archives/2012/1689.html</p><p><br></p><p>It doesnt seem to work and gives me output of missing values:</p><p>Extract from code:</p><p> t4Clm = dim_avg_n_Wrap( t4ann, 2)<br> printVarSummary(t4Clm) ; (time,lat)<br>print(t4Clm) ;this prints out the numbers/values of temperature<br><br> t4Clm1 = dim_avg_n_Wrap( t4Clm, 1)<br> printVarSummary(t4Clm1) ; (time)<br>print (t4Clm1) ;this gives all -nan</p><p><br></p><p>I use this for my plotting.<br></p><p><br></p><p>Much appreciated for any advice.<br></p></body></html>