extractMeta: Get Meta Data

In eatGADS: Data Management of Large Hierarchical Data

Get Meta Data

Description

Extract meta data (e.g. variable and values labels) from an eatGADS object. This can be a GADSdat, an all_GADSdat, a labels data.frame, or the path to an existing data base.

Usage

extractMeta(GADSobject, vars = NULL)

Arguments

GADSobject	Either a GADSdat object or a path to an existing eatGADS data base.
vars	A character vector containing variable names. If NULL (default), all available meta information is returned.

Details

Meta data is stored tidily in all GADSdat objects as a separate long format data frame. This information can be extracted for a single or multiple variables.

Value

Returns a long format data frame with meta information.

Examples

# Extract Meta data from data base
db_path <- system.file("extdata", "pisa.db", package = "eatGADS")
extractMeta(db_path, vars = c("schtype", "sameteach"))

# Extract Meta data from loaded/imported GADS
extractMeta(pisa, vars = c("schtype", "sameteach"))

eatGADS documentation built on Oct. 9, 2024, 5:09 p.m.