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(Stranger )
10/25/05 11:55 PM
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I would like to use logistic regression to model the relationship between terrain parameters and landslide occurrence after data preparation in GIS. I am having trouble determining the necessary sample size. My area has 79430 cells composed of 15151 landslide cells (response variable 1) and the remaining 64279 of non-landslide cells (response variable 0) and still wondering that percentage of non-landslide cells (response variable 0) should I use in my study. Do you have any suggestion or comment?
Thank you

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