ILSAready: Download and prepare ILSA data

In ILSAmerge: Merge and Download International Large-Scale Assessments (ILSA) Data

Download and prepare ILSA data

Description

Downloads ILSA data, merges it, combines students and adds school information. This function is a wrapper for ILSAdownload, ILSAmerge, ILSArename, combineStudents, and addSchools. To see which ILSA are available for this function use availableILSA. If data is already downloaded you can use ILSAreadylocal.

Usage

ILSAready(
  study,
  year,
  outputdir = getwd(),
  filetype = c("rds", "zsav", "sav"),
  MBlistlimit = 200,
  quiet = FALSE,
  agreeLicense = FALSE
)

ILSAreadylocal(
  inputdir = getwd(),
  outputdir = getwd(),
  filetype = c("rds", "zsav", "sav"),
  quiet = FALSE,
  MBlistlimit = 200
)

Arguments

study	a string indicating the name of the study. For available studies check the description of this function.
year	a numeric value indicating the year of the study.
outputdir	the directory where the merged data will be saved.
filetype	a string indicating the type of file to be saved, it can be "rds", "zsav", or "sav".
MBlistlimit	a numerical value indicating the allowed limit of the combined storage of the files of one type for merging through a list. Values over the limit will be merged through a matrix, which will be slower but uses less memory. Default is 200.
quiet	a logical value indicating if progress status should be shown. Default is FALSE.
agreeLicense	a logical value indicating if you agree with the Disclaimer and License Agreement file from www.iea.nl. If FALSE, you will be prompted to agree with it or else data will not be downloaded. Default is FALSE.
inputdir	a string indicating the path where ILSA 'SPSS' files are stored.

Value

Saves merged and renamed ILSA data.

Examples

dir.create(file.path(tempdir(),"timssadv"),showWarnings = FALSE)
output <- file.path(tempdir(),"timssadv")

input <- system.file("extdata/timssadv", package = "ILSAmerge")

ILSAreadylocal(inputdir = input, outputdir = output, filetype = "zsav")

ILSAmerge documentation built on April 11, 2025, 5:54 p.m.