eatGADS (version 1.0.0)

recode2NA: Recode a value to NA.

Description

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

Usage

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

Value

Returns the recoded GADSdat.

Arguments

GADSdat

A GADSdat object.

recodeVars

Character vector of variable names which should be recoded.

value

Which value should be recoded to NA?

Details

If there are value labels given to the specified value, these are removed. 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.

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)