recode2NA: Recode values to 'NA'.

In eatGADS: Data Management of Large Hierarchical Data

Recode values to NA.

Description

Recode multiple values in multiple variables in a GADSdat to NA.

Usage

recode2NA(GADSdat, recodeVars = namesGADS(GADSdat), value = "")

Arguments

GADSdat	A GADSdat object.
recodeVars	Character vector of variable names which should be recoded.
value	Which values should be recoded to NA?

Details

If there are value labels given to the specified value, a warning is issued. Number of recodes per variable are reported.

If a data set is imported from .sav, character variables frequently contain empty strings. Especially if parts of the data are written to .xlsx, this can cause problems (e.g. as look up tables from createLookup), as most function which write to .xlsx convert empty strings to NAs. recodeString2NA can be used to recode all empty strings to NA beforehand.

Value

Returns the recoded GADSdat.

Examples

# create example GADS
dat <- data.frame(ID = 1:4, var1 = c("", "Eng", "Aus", "Aus2"),
                  var2 = c("", "French", "Ger", "Ita"),
                  stringsAsFactors = FALSE)
gads <- import_DF(dat)

# recode empty strings
gads2 <- recode2NA(gads)

# recode numeric value
gads3 <- recode2NA(gads, recodeVars = "ID", value = 1:3)

eatGADS documentation built on June 8, 2025, 12:42 p.m.