NHANES {hexbin} | 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
*u*g/l.
- TIBC
- numeric giving Total Iron Binding Capacity in
*u*g/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).

### Source

unknown

### References

### 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)

[Package

*hexbin* version 1.0.10

Index]