issue_comments: 275958974

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https://github.com/pydata/xarray/issues/277#issuecomment-275958974 https://api.github.com/repos/pydata/xarray/issues/277 275958974 MDEyOklzc3VlQ29tbWVudDI3NTk1ODk3NA== 1217238 2017-01-30T00:29:51Z 2017-01-30T00:29:51Z MEMBER

Given the dask integration, being able to initialize DataArrays that are chunked would be very helpful. I want to map from an old x-y-z grid to a new one, and theoretically it could be too memory intensive to keep the new grid in memory, so it would be nice to initialize an empty one and then fill it.

Dask Array recently added support for modifying arrays in place but generally this isn't recommended -- you want to create new arrays, e.g., with dask.array.atop or map_blocks.

 
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