Connect to PIAAC Data

Opens a connection to a PIAAC data file and returns an edsurvey.data.frame with information about the file and data.

Usage

readPIAAC(
  path,
  countries,
  forceReread = FALSE,
  verbose = TRUE,
  usaOption = "12_14"
)

Arguments

path: a character value to the full directory path to the PIAAC .csv files and Microsoft Excel codebook
countries: a character vector of the country/countries to include using the three-digit ISO country code. A list of country codes can be found in the PIAAC codebook or https://en.wikipedia.org/wiki/ISO_3166-1#Current_codes. If files are downloaded using downloadPIAAC, a country dictionary text file can be found in the filepath. You can use * to indicate all countries available. For the usa, the year must be specified using: usa12_14 or usa17.
forceReread: a logical value to force rereading of all processed data. Defaults to FALSE. Setting forceReread to be TRUE will cause PIAAC data to be reread and increase the processing time.
verbose: a logical value that will determine if you want verbose output while the function is running to indicate the progress. Defaults to TRUE.
usaOption: a character value of 12_14 or 17 that specifies what year of the USA survey should be used when loading all countries by using * in the countries argument. This will only make a difference when loading all countries. Defaults to 12_14.

Value

an edsurvey.data.frame for a single specified country or an edsurvey.data.frame.list if multiple countries specified

Details

Reads in the unzipped .csv files downloaded from the PIAAC dataset using the OECD repository (https://www.oecd.org/skills/piaac.html). Users can use downloadPIAAC to download all required files automatically.

References

Organisation for Economic Co-operation and Development. (2016). Technical report of the survey of adult skills (PIAAC) (2nd ed.). Paris, France: Author. Retrieved from https://www.oecd.org/skills/piaac/PIAAC_Technical_Report_2nd_Edition_Full_Report.pdf

Author

Trang Nguyen

Examples

if (FALSE) { # \dontrun{
# the following call returns an edsurvey.data.frame to PIAAC for Canada
can <- readPIAAC("~/PIAAC/Cycle 1/", countries = "can")

# extract a data.frame with a few variables
gg <- getData(data=can, varnames=c("c_d05","ageg10lfs"))  
head(gg)

# conduct an analysis on the edsurvey.data.frame
edsurveyTable(formula=~ c_d05 + ageg10lfs, data = can)

# the following call returns an edsurvey.data.frame to PIAAC for Canada
can <- readPIAAC("~/PIAAC/Cycle 1/", countries = "can", us)

# There are two years of usa data for round 1: 2012-2014 and 2017. 
# The user must specify which usa year they want with the optional "usaOption" argument. 
# Otherwise, the read function will return usa 2012-2014. See "?readPIACC()" for more info. 

# read in usa 2012-2014 
usa12 <- readPIAAC("~/PIAAC/Cycle 1",
                   countries = "usa", usaOption="12_14")
# read in usa 2017 
usa17 <- readPIAAC("~/PIAAC/Cycle 1",
                   countries = "usa", usaOption="17")
# if reading in all piaac data, the user can still specify usa option. 
# Otherwise, by default 2012-1014 will be used when reading in all piaac data. 
all_piaac <- readPIAAC("~/PIAAC/Cycle 1",
                       countries = "*", usaOption="17")
} # }