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 ug/l.
- TIBC
- numeric giving Total Iron Binding Capacity in ug/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 1.4.0
Index]