The depress data frame has 8,893 rows and 5 columns from the National Health and Nutrition Examination Survey (NHANES) 2009–2010.
depressSample survey data
binary response variable indicating whether the participant has depression (=1) or not (=0)
a numeric vector giving the log-transformed total blood mercury in micro-grams per litre
0 of particiapant is female and 1 if they are male
age of the participant
a numeric vector giving the sampling-weight.