NHANES: NHANES Data : National Health and Nutrition Examination...
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NHANES

R Documentation

NHANES Data : National Health and Nutrition Examination Survey

Description

This is a somewhat large interesting dataset, a data frame of 15 variables (columns) on 9575 persons (rows).

Usage

data(NHANES)

Format

This data frame contains the following columns:

Cancer.Incidence: binary factor with levels No and Yes.
Cancer.Death: binary factor with levels No and Yes.
Age: numeric vector giving age of the person in years.
Smoke: a factor with levels Current, Past, Nonsmoker, and Unknown.
Ed: numeric vector of \{0,1\} codes giving the education level.
Race: numeric vector of \{0,1\} codes giving the person's race.
Weight: numeric vector giving the weight in kilograms
BMI: numeric vector giving Body Mass Index, i.e., Weight/Height^2 where Height is in meters, and missings (61% !) are coded as 0 originally.
Diet.Iron: numeric giving Dietary iron.
Albumin: numeric giving albumin level in g/l.
Serum.Iron: numeric giving Serum iron in \mug/l.
TIBC: numeric giving Total Iron Binding Capacity in \mug/l.
Transferin: numeric giving Transferin Saturation which is just 100*serum.iron/TIBC.
Hemoglobin: numeric giving Hemoglobin level.
Sex: a factor with levels F (female) and M (male).

Examples

data(NHANES)
summary(NHANES)
## Missing Data overview :
nNA <- sapply(NHANES, function(x)sum(is.na(x)))
cbind(nNA[nNA > 0])
# Which are just these 6 :
## Not run: 
Diet.Iron         141
Albumin           252
Serum.Iron       1008
TIBC              853
Transferin       1019
Hemoglobin        759

## End(Not run)

hexbin documentation built on Sept. 11, 2024, 8:58 p.m.