# Problem when retrives using pydda

**URL:** <https://openradar.discourse.group/t/problem-when-retrives-using-pydda/597>\
**Category:** General\
**Created:** [May 2, 2025, 7:58am UTC](https://openradar.discourse.group/t/problem-when-retrives-using-pydda/597 "2025-05-02T07:58:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![hko.benng](https://avatars.discourse-cdn.com/v4/letter/h/ee59a6/32.png) [@hko.benng](https://openradar.discourse.group/u/hko.benng)\
**Post date:** [May 2, 2025, 7:58am UTC](https://openradar.discourse.group/t/problem-when-retrives-using-pydda/597/1 "2025-05-02T07:58:03Z")

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Hello, I would like to know about the pydda.retrieval.get\_dd\_wind\_field(), the sequence of the first input param(“Grids”) will affect the result? I am using 7 radars to retrives and I got the different result if the sequence changed.