issue_comments: 410675562

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https://github.com/pydata/xarray/issues/2304#issuecomment-410675562 https://api.github.com/repos/pydata/xarray/issues/2304 410675562 MDEyOklzc3VlQ29tbWVudDQxMDY3NTU2Mg== 1492047 2018-08-06T11:19:30Z 2018-08-06T11:19:30Z CONTRIBUTOR

You're right when you say

Note that it's very easy to later convert from float32 to float64, e.g., by writing ds.astype(np.float64).

You'll have a float64 in the end but you won't get your precision back and it might be a problem in some case.

I understand the benefits of using float32 on the memory side but it is kind of a problem for us each time we have variables using scale factors.

I'm surprised this issue (if considered as one) does not bother more people.

 
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