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grid statistics for polygons

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2020-12-09
2024-04-06
  • Doug Aspinall

    Doug Aspinall - 2020-12-09

    asking for percentiles "20; 50; 80". only returns 50 and 80. worked fine in older versions like saga 6.

     
  • Volker Wichmann

    Volker Wichmann - 2020-12-10

    I can't reproduce this with SAGA 7.8.2 - works fine. I also don't see what should have changed there.

     
  • Alex Dunant

    Alex Dunant - 2024-04-05

    Hello,

    I am new to SAGA GIS but I would like to ask a question on this specific tool.

    I want to extract raster stats on a polygon file. My raster resolution (30m) is larger than most of the polygons.

    How does the different Methods work? I am currently using polygon wise (cell area) - is it correct in my case?

    Thank you!

     
  • Volker Wichmann

    Volker Wichmann - 2024-04-06

    Hi,

    in this case you should use the method "polygon wise (cell area weighted)". This way the exact area of each cell covered by your polygons will be evaluated.

    Best regards,
    Volker

     

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