The goal of
yowie is to provide longitudinal wages data sets along
with several demographic variables of Americans from the National
Longitudinal Survey of Youth
(NLSY79) from Round 1
(the survey year 1979) to Round 28 (the survey year 2018). The NLSY79 is
a longitudinal project held by the U.S. Bureau of Labor Statistics that
follows the lives of a sample of American youth born between 1957-64.
The cohort originally included 12,686 respondents ages 14-22 when first
interviewed in 1979. There are three data sets provided in this package:
wages: The wages data from the cohort whose highest grade completed is up to 12th grade.
wages_hs_do: The wages data of the high school dropouts.
demog_nlsy79: The demographic data of the NLSY79 cohort.
You can install the development version from GitHub with:
# install.packages("devtools") devtools::install_github("numbats/yowie")
Here is the example of plotting some samples of subjects in
brolgar (Tierney, Cook, and Prvan, 2020).
library(yowie) library(brolgar) library(ggplot2) set.seed(20210217) ggplot(yowie::wages, aes(x = year, y = wage, group = id)) + geom_line(alpha = 0.7) + facet_sample() + ylab("mean hourly wage") + theme_bw()
About the package name
A yowie is a mythical creature in Australian foklore akin to Big Foot or Sasquatch in north America. In terms of the package it can be considered an acronym: Years Of Wages to Investigate and Explore.