man/examples/readTIMSS.R

In EdSurvey: Analysis of NCES Education Survey and Assessment Data

\dontrun{
# single country specified
fin <- readTIMSS(path="~/TIMSS/2015", countries = c("fin"), gradeLvl = 4)
gg <- getData(data=fin, varnames=c("asbg01", "totwgt", "srea"))
head(gg)
edsurveyTable(formula=srea ~ asbg01, fin)

# multiple countries returned as edsurvey.data.frame.list, specify all countries with '*' argument
timss2011 <- readTIMSS(path="~/TIMSS/2011", countries="*", gradeLvl = 8, verbose = TRUE)
# print out edsurvey.data.frame.list covariates
timss2011$covs
}