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My conclusion from this is that _FillValue should never be used to indicate a default value for valid data, because it will be treated exactly as if it were missing, or never written, by most applications.OK, you have convinced me this would be a very confusing & stupid thing to do. But I suspect John Caron still wants a rule to handle this case if it does occur. I think it would be reasonable in this case to treat the _FillValue as valid.
thanks for thinking of my problem. right now im working on an implementation that would follow brian's rules as default, but still allows a user to implement confusing and stupid things if they want :^}
"the great thing about standards is that there's so many to choose from!"
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