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Extract or remove variables from a GADSdat.

Source: R/removeVars.R
extractVars.Rd

Extract or remove variables and their meta data from a GADSdat object.

Usage

extractVars(GADSdat, vars)

removeVars(GADSdat, vars)

Arguments

GADSdat

GADSdat object.

vars

A character vector containing the variables names in the GADSdat.

Value

Returns a GADSdat object.

Details

Both functions simply perform the variable removal or extraction from the underlying data.frame in the GADSdat object followed by calling updateMeta.

Examples

## create an example GADSdat
example_df <- data.frame(ID = 1:4,
                        age = c(12, 14, 16, 13),
                        citizenship1 = c("German", "English", "Polish", "Chinese"),
                        citizenship2 = c(NA, "German", "Chinese", "Polish"),
                        stringsAsFactors = TRUE)
gads <- import_DF(example_df)

## remove variables from GADSdat
gads2 <- removeVars(gads, vars = c("citizenship2", "age"))
#> Removing the following rows from meta data: age, citizenship2
#> No rows added to meta data.

## extract GADSdat with specific variables
gads3 <- extractVars(gads, vars = c("ID", "citizenship1"))
#> Removing the following rows from meta data: age, citizenship2
#> No rows added to meta data.