[Nexus] versioning

[GOTZ Andrew]

Aaron,

thanks for bringing up this issue. Are you planning on overwriting the 
original file as you will be overwriting the original value or will you 
create a new file? Maybe using links could help in updating them.

Andy

Le 01/04/2020 à 03:26, Herbert J. Bernstein a écrit :
> Dear Aaron,
>   What you are thinking of are called variants.  You will find the CIF 
> style of variants in the imgCIF dictionary.  The NeXus style
> which is intended to fill the same role is Mark Koenecke's proposal in
>
> http://lists.nexusformat.org/pipermail/nexus-committee/2019/000905.html
>
>   Regards,
>     Herbert
>
> On Tue, Mar 31, 2020 at 8:40 PM Aaron Brewster <asbrewster at lbl.gov 
> <mailto:asbrewster at lbl.gov>> wrote:
>
>     Hi all, I recall there was a way in NeXus to mark a group or field
>     in an existing NeXus file as old/deprecated and add a new one
>     replacing it.  For example if you refined a detector position and
>     you want to remember what the old position was, but any software
>     reading the file should use the new position.  Can this be done? 
>     My googling on the website didn't find it.
>
>     Thanks,
>     -Aaron
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