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%3CLINGO-SUB%20id%3D%22lingo-sub-237514%22%20slang%3D%22en-US%22%20mode%3D%22NONE%22%3E%E5%85%B7%E6%9C%890%E5%80%BC%E7%9A%84Box-Cox%E8%AE%8A%E6%8F%9B%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-237514%22%20slang%3D%22en-US%22%20mode%3D%22NONE%22%3E%3CP%3E%E6%88%91%E5%98%97%E8%A9%A6%E5%9F%B7%E8%A1%8CBox-Cox%E8%BD%89%E6%8F%9B%EF%BC%8C%E4%BD%86%E5%87%BA%E7%8F%BE%E9%8C%AF%E8%AA%A4%EF%BC%8C%E5%9B%A0%E7%82%BA%E5%9C%A8%E6%88%91%E7%9A%84%E6%9F%90%E4%BA%9BY%E5%88%97%E4%B8%AD%E6%9C%890%E5%80%8B%E5%80%BC%E3%80%82%E6%88%91%E7%9A%84%E6%95%B8%E6%93%9A%E6%98%AF%E6%A8%B9%E6%9C%A8%E5%86%8D%E7%94%9F%E5%AF%86%E5%BA%A6%EF%BC%88%E8%8E%96%2F%E5%85%AC%E9%A0%83%EF%BC%89%EF%BC%8C%E5%9B%A0%E6%AD%A4%E6%9C%89%E4%BA%9B%E5%9C%B0%E5%A1%8A%E7%9A%84%E8%8E%96%E6%95%B8%E7%82%BA0%E3%80%82%E6%9C%89%E6%B2%92%E6%9C%89%E8%A7%A3%E6%B1%BA%E6%AD%A4%E9%8C%AF%E8%AA%A4%E7%9A%84%E6%96%B9%E6%B3%95%EF%BC%9F%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-237619%22%20slang%3D%22en-US%22%20mode%3D%22NONE%22%3E%E5%9B%9E%E5%A4%8D%EF%BC%9A%E5%85%B7%E6%9C%890%E5%80%BC%E7%9A%84Box-Cox%E8%AE%8A%E6%8F%9B%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-237619%22%20slang%3D%22en-US%22%20mode%3D%22NONE%22%3E%3CP%3E%E5%B0%870%E5%80%BC%E6%9B%BF%E6%8F%9B%E7%82%BA%E9%9D%9E%E5%B8%B8%E5%B0%8F%E7%9A%84%E6%AD%A3%E5%80%BC%EF%BC%8C%E4%BE%8B%E5%A6%821e-6%EF%BC%9F%EF%BC%88%E6%88%91%E4%B8%8D%E7%9F%A5%E9%81%93%E6%82%A8%E7%9A%84%E5%86%8D%E7%94%9F%E5%AF%86%E5%BA%A6%E9%9F%BF%E6%87%89%E7%9A%84%E7%AF%84%E5%9C%8D%E3%80%82%EF%BC%89%3C%2FP%3E%3C%2FLINGO-BODY%3E
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TreeStatsNoob
TreeStatsNoob
Level II

Box-Cox transformation with 0 values

Dec 5, 2019 05:30 PM (3903 views)

I tried to perform a Box-Cox transformation, but got an error because I have 0 values in some of my Y column. My data is tree regeneration density (stems/ha), so some plots had 0 stems in them. Is there a way around this error?

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Mark_Bailey
Staff Mark_Bailey
Staff

Re: Box-Cox transformation with 0 values

Dec 6, 2019 09:43 AM (3885 views)  |  Posted in reply to message from TreeStatsNoob 12-05-2019

Replace the 0 values with very small positive values, such as 1e-6? (I don't know the range of your regeneration density response.)

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