# 13: Sampling in R

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First we load the necessary libraries and set up the NHANES adult dataset

library(tidyverse)
library(ggplot2)
library(knitr)
library(cowplot)

set.seed(123456)
opts_chunk\$set(tidy.opts=list(width.cutoff=80))
options(tibble.width = 60)

# load the NHANES data library
library(NHANES)

# create a NHANES dataset without duplicated IDs
NHANES <-
NHANES %>%
distinct(ID, .keep_all = TRUE)

#create a dataset of only adults
drop_na(Height)