nhdat2 {csurvey} | R Documentation |
A Subset of National Health and Nutrition Examination Survey (NHANES)
Description
The National Health and Nutrition Examination Survey (NHANES) combines in-person interviews and physical examinations to produce a comprehensive data set from a probability sample of residents of the U.S.
This data set is a subset of the NHANES data with 1,933 subjects.
Usage
data(nhdat2)
Format
A data frame with 1933 observations on the following 8 variables.
id
a identification vector specifying cluster ids from largest level to smallest level
chol
a continuous vector of cholesterol level
wcat
a vector of categorized waist and height ratio
icat
an ordinal vector of categorized income level
gender
a binary vector of genders
age
a vector of categorized age
wt
sampling weight within each stratum
str
a numeric vector
Details
The variable chol in this data set is continuous, which the varible chol in the nhdat data set is binomial.
Examples
## Not run:
data(nhdat2)
summary(nhdat2)
## End(Not run)