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Spatial changes in the average center and error ellipse of PM2.5 concentrations in China

Quang Hoang
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huahua520
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    I would suggest getting the data used, processing it, then using something like [matplotlib](https://matplotlib.org/) to plot the data. – Linny May 06 '20 at 03:02
  • https://www.visiondummy.com/2014/04/draw-error-ellipse-representing-covariance-matrix/ – Joe May 06 '20 at 05:16
  • https://www.xarg.org/2018/04/how-to-plot-a-covariance-error-ellipse/ – Joe May 06 '20 at 05:16
  • https://stackoverflow.com/questions/14233301/skewed-gaussian-distribution-within-an-ellipse-with-python – Joe May 06 '20 at 05:17
  • Thank you for your information. I found the answer in the Directional Distribution of ArcGIS – huahua520 May 06 '20 at 13:27

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