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Generalized Linear Model - Question for binomial distribution
Sep 28, 2020 5:22 AM(230 views)
I have a question regarding the Generalized Linear Model platform when we use a binomial distribution.
The response variable can be specify using two continuous columns as Y in this order: the count of the number of successes, and the count of the number of trials.
What if, for some reasons, the number of successes is greater than the number of trials for a few rows (e.g. successes= 60, trials = 50)? Is it automatically corrected during the analysis (i.e. the number of trials is updated -> 60)? Or should it be absolutely corrected before launching the analysis because it can lead to mistakes during the calculations?
I can't answer whether JMP will automatically correct the number of trials for all rows, but obviously you have an issue with data collection or entry. If you have more successes than trials, what other data collection/entry errors are in the data set? I would correct these before proceeding with any analysis.
Thanks for your answers @statman and @markbailey . Of course I totally agree with you: the cleaning step should be the very first step before doing any analysis. In some very particular cases the total number of trials can be slightly updated in comparison to the initial number provided. I just wanted to know, by curiosity, how it was handled from a technical point of view and if the correction was automatically done or not. But definitely I agree that it is better to clean first