Retrieve variable label(s) of labelled data
This function returns the variable labels of labelled data.
get_label(x, ..., def.value = NULL, case = NULL)
x |
A data frame with variables that have label attributes (e.g.
from an imported SPSS, SAS or STATA data set, via |
... |
Optional, names of variables, where labels should be retrieved.
Required, if either data is a data frame and no vector, or if only
selected variables from |
def.value |
Optional, a character string which will be returned as label
if |
case |
Desired target case. Labels will automatically converted into the
specified character case. See |
A named character vector with all variable labels from the data frame or list;
or a simple character vector (of length 1) with the variable label, if x is a variable.
If x is a single vector and has no label attribute, the value
of def.value will be returned (which is by default NULL).
var_labels is an alternative way to set variable labels,
which follows the philosophy of tidyvers API design (data as first argument,
dots as value pairs indicating variables)
See vignette Labelled Data and the sjlabelled-Package
for more details; set_label to manually set variable labels or get_labels
to get value labels; var_labels to set multiple variable
labels at once.
# import SPSS data set
# mydat <- read_spss("my_spss_data.sav", enc="UTF-8")
# retrieve variable labels
# mydat.var <- get_label(mydat)
# retrieve value labels
# mydat.val <- get_labels(mydat)
data(efc)
# get variable lable
get_label(efc$e42dep)
# alternative way
get_label(efc)["e42dep"]
# 'get_label()' also works within pipe-chains
library(magrittr)
efc %>% get_label(e42dep, e16sex)
# set default values
get_label(mtcars, mpg, cyl, def.value = "no var labels")
# simple barplot
barplot(table(efc$e42dep))
# get value labels to annotate barplot
barplot(table(efc$e42dep),
names.arg = get_labels(efc$e42dep),
main = get_label(efc$e42dep))
# get labels from multiple variables
get_label(list(efc$e42dep, efc$e16sex, efc$e15relat))
# use case conversion for human-readable labels
data(iris)
get_label(iris, def.value = colnames(iris))
get_label(iris, def.value = colnames(iris), case = "parsed")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.