Statistics on non masked points points:
 Min and max of the error field on non masked points:
 Min and its location in the error field :    4.1883872E-08
            1
 Max and its location in the error field :     4.187958    
        19395
 Delta error :   0.1395986    
 Error mean :    0.2126837273598041     
 End calculation of stat on the error