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### Problem with one variable in a binary logistic regression [duplicate]

I analyzed four binary variables with a binary logistic regression. I used for the analysis of all four binary y-variables the same set of 9 x-variables (a-i). My problem deals with one of this four ...
30 views

### How to make binomial regression when some groups have 0 variance (using R)? [duplicate]

Problem: Response is binary (1/0) and some treatment combinations are so inefficient that all replicates in that group = 0 while some are so efficient that all replicates in that group = 1. Those ...
28 views

### Values distribution issue in logistic regression [duplicate]

I have a problem with logistic regression. I have the following variables: Var1: 1 1 1 0 0 1 1 1 1 1 1 1 1 0 1 0 0 1 1 1 1 1 1 1 1 0 0 NA 1 0 0 1 0 1 1 0 0 0 1 1 0 0 1 1 1 0 1 0 1 1 1 1 1 1 1 1 0 1 ...
28 views

### Warning message: glm.fit: fitted probabilities numerically 0 or 1 occurred ? What does it mean and how to fix it? [duplicate]

All, I have a dataset that contains more than 45k rows and 2 columns. Below is dput() of first 50 rows. One thing to consider is that ...
25 views

### Is it ok to have “fitted probabilities numerically 0 or 1 occurred” in the case of predicting disease? [duplicate]

I know this isn't directly related to statistics but I didn't know where else I should post this so please let me know and I will remove the question if this is the wrong forum. My question is very ...
88k views

### Statistics interview questions

I am looking for some statistics (and probability, I guess) interview questions, from the most basic through the more advanced. Answers are not necessary (although links to specific questions on this ...
90k views

### Sample size for logistic regression?

I want to make a logistic model from my survey data. It is a small survey of four residential colonies in which only 154 respondents were interviewed. My dependent variable is "satisfactory transition ...