issue_comments: 248402441

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https://github.com/pydata/xarray/pull/812#issuecomment-248402441 https://api.github.com/repos/pydata/xarray/issues/812 248402441 MDEyOklzc3VlQ29tbWVudDI0ODQwMjQ0MQ== 4295853 2016-09-20T19:13:02Z 2016-09-20T19:13:59Z CONTRIBUTOR

@shoyer and @jhamman here is the general use of the cumsum and cumprod operators. Note, I probably need to have some type of error checking for the dask version (e.g., we require a version of dask with nancumsum, nanprod, and nancumprod). What is the standard way to do this?

For example, dask 0.11.0 works but dask 0.8.1 does not and returns an error.

 
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