Use "where"
http://www.ncl.ucar.edu/Document/Functions/Built-in/where.shtml
   xmin = ...
   x = where (x.lt.xmin, x@_FillValue, x)
louis Vonder wrote:
> Dear all,
> 
> I have data stored in Netcdf format.
> 
> I want to calculate average of this data.
> 
> But when I am averaging I don't want to consider values below a fixed 
> threshold.
>  
> For this reason I want fix all these values below the threshold to 
> "missing value".
> 
> Then after I will use the  NCL function dim_avg_n_Wrap 
> <file:///media/xp/www.ncl.ucar.edu/Document/Functions/Contributed/dim_avg_n_Wrap.shtml> 
> to perform my task.
> 
> Many thanks
> 
> 
> 
> ------------------------------------------------------------------------
> 
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Received on Wed Jul 01 2009 - 09:33:48 MDT
This archive was generated by hypermail 2.2.0 : Thu Jul 02 2009 - 11:39:37 MDT