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  • dtype changes after .load() · 4 ✖
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234126647 https://github.com/pydata/xarray/issues/913#issuecomment-234126647 https://api.github.com/repos/pydata/xarray/issues/913 MDEyOklzc3VlQ29tbWVudDIzNDEyNjY0Nw== shoyer 1217238 2016-07-21T00:49:01Z 2016-07-21T00:49:01Z MEMBER

I just filed a report upstream with dask in https://github.com/dask/dask/issues/1394. This is definitely a dask bug, because I can reproduce it without xarray. Thanks for the report!

 
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   dtype changes after .load() 166642852
234097971 https://github.com/pydata/xarray/issues/913#issuecomment-234097971 https://api.github.com/repos/pydata/xarray/issues/913 MDEyOklzc3VlQ29tbWVudDIzNDA5Nzk3MQ== shoyer 1217238 2016-07-20T22:04:00Z 2016-07-20T22:04:00Z MEMBER

I would try creating a dask array of the same dtype and shape as this array. Then, see what happens to the dtype when you call the .mean(axis=0).compute().

 
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   dtype changes after .load() 166642852
234096888 https://github.com/pydata/xarray/issues/913#issuecomment-234096888 https://api.github.com/repos/pydata/xarray/issues/913 MDEyOklzc3VlQ29tbWVudDIzNDA5Njg4OA== robintw 296686 2016-07-20T21:59:14Z 2016-07-20T21:59:14Z CONTRIBUTOR

I'm not really sure how to work out which one it is a bug in - do you have any advice? Or should I just report it on the dask issue tracker too and see what they think?

 
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   dtype changes after .load() 166642852
234043551 https://github.com/pydata/xarray/issues/913#issuecomment-234043551 https://api.github.com/repos/pydata/xarray/issues/913 MDEyOklzc3VlQ29tbWVudDIzNDA0MzU1MQ== shoyer 1217238 2016-07-20T18:45:47Z 2016-07-20T18:45:47Z MEMBER

This is a bug, though possibly a dask.array bug rather than an xarray bug.

 
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   dtype changes after .load() 166642852

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