grouping

Hi guys, This is my homework question. I would appreciate if i could get some idea of where i'm wrong. Determine whether the variables Smoking, Weight and Alcohol Consumption can be used to discriminate between the three diagnostic categories or levels of heart disease (0=no heart disease...

Hello, I need to perform Hosmer-Lemeshow test for logistic regression, but I'm not sure how to group data (continuous variable - interval 0-1). Basically there are two options - divide the interval into equal sections OR divide data into same populated groups. Which of these two...