set_labels | R Documentation |

This function adds labels as attribute (named `"labels"`

)
to a variable or vector `x`

, resp. to a set of variables in a
data frame or a list-object. A use-case is, for instance, the
sjPlot-package, which supports labelled data and automatically
assigns labels to axes or legends in plots or to be used in tables.
`val_labels()`

is intended for use within pipe-workflows and has a
tidyverse-consistent syntax, including support for quasi-quotation
(see 'Examples').

set_labels( x, ..., labels, force.labels = FALSE, force.values = TRUE, drop.na = TRUE ) val_labels(x, ..., force.labels = FALSE, force.values = TRUE, drop.na = TRUE)

`x` |
A vector or data frame. |

`...` |
For |

`labels` |
(Named) character vector of labels that will be added to if `labels` is**not**a*named vector*, its length must equal the value range of`x` , i.e. if`x` has values from 1 to 3,`labels` should have a length of 3;if length of `labels` is intended to differ from length of unique values of`x` , a warning is given. You can still add missing labels with the`force.labels` or`force.values` arguments; see 'Note'.if `labels` **is**a*named vector*, value labels will be set accordingly, even if`x` has a different length of unique values. See 'Note' and 'Examples'.if `x` is a data frame,`labels` may also be a`list` of (named) character vectors;if `labels` is a`list` , it must have the same length as number of columns of`x` ;if `labels` is a vector and`x` is a data frame,`labels` will be applied to each column of`x` .
Use |

`force.labels` |
Logical; if |

`force.values` |
Logical, if |

`drop.na` |
Logical, whether existing value labels of tagged NA values
(see |

`x`

with value label attributes; or with removed label-attributes if
`labels = ""`

. If `x`

is a data frame, the complete data
frame `x`

will be returned, with removed or added to variables
specified in `...`

; if `...`

is not specified, applies
to all variables in the data frame.

if

`labels`

is a named vector,`force.labels`

and`force.values`

will be ignored, and only values defined in`labels`

will be labelled;if

`x`

has less unique values than`labels`

, redundant labels will be dropped, see`force.labels`

;if

`x`

has more unique values than`labels`

, only matching values will be labelled, other values remain unlabelled, see`force.values`

;

If you only want to change partial value labels, use `add_labels`

instead.
Furthermore, see 'Note' in `get_labels`

.

See vignette Labelled Data and the sjlabelled-Package
for more details; `set_label`

to manually set variable labels or
`get_label`

to get variable labels; `add_labels`

to
add additional value labels without replacing the existing ones.

if (require("sjmisc")) { dummy <- sample(1:4, 40, replace = TRUE) frq(dummy) dummy <- set_labels(dummy, labels = c("very low", "low", "mid", "hi")) frq(dummy) # assign labels with named vector dummy <- sample(1:4, 40, replace = TRUE) dummy <- set_labels(dummy, labels = c("very low" = 1, "very high" = 4)) frq(dummy) # force using all labels, even if not all labels # have associated values in vector x <- c(2, 2, 3, 3, 2) # only two value labels x <- set_labels(x, labels = c("1", "2", "3")) x frq(x) # all three value labels x <- set_labels(x, labels = c("1", "2", "3"), force.labels = TRUE) x frq(x) # create vector x <- c(1, 2, 3, 2, 4, NA) # add less labels than values x <- set_labels(x, labels = c("yes", "maybe", "no"), force.values = FALSE) x # add all necessary labels x <- set_labels(x, labels = c("yes", "maybe", "no"), force.values = TRUE) x # set labels and missings x <- c(1, 1, 1, 2, 2, -2, 3, 3, 3, 3, 3, 9) x <- set_labels(x, labels = c("Refused", "One", "Two", "Three", "Missing")) x set_na(x, na = c(-2, 9)) } if (require("haven") && require("sjmisc")) { x <- labelled( c(1:3, tagged_na("a", "c", "z"), 4:1), c("Agreement" = 1, "Disagreement" = 4, "First" = tagged_na("c"), "Refused" = tagged_na("a"), "Not home" = tagged_na("z")) ) # get current NA values x get_na(x) # lose value labels from tagged NA by default, if not specified set_labels(x, labels = c("New Three" = 3)) # do not drop na set_labels(x, labels = c("New Three" = 3), drop.na = FALSE) # set labels via named vector, # not using all possible values data(efc) get_labels(efc$e42dep) x <- set_labels( efc$e42dep, labels = c(`independent` = 1, `severe dependency` = 2, `missing value` = 9) ) get_labels(x, values = "p") get_labels(x, values = "p", non.labelled = TRUE) # labels can also be set for tagged NA value # create numeric vector x <- c(1, 2, 3, 4) # set 2 and 3 as missing, which will automatically set as # tagged NA by 'set_na()' x <- set_na(x, na = c(2, 3)) x # set label via named vector just for tagged NA(3) set_labels(x, labels = c(`New Value` = tagged_na("3"))) # setting same value labels to multiple vectors dummies <- data.frame( dummy1 = sample(1:4, 40, replace = TRUE), dummy2 = sample(1:4, 40, replace = TRUE), dummy3 = sample(1:4, 40, replace = TRUE) ) # and set same value labels for two of three variables test <- set_labels( dummies, dummy1, dummy2, labels = c("very low", "low", "mid", "hi") ) # see result... get_labels(test) } # using quasi-quotation if (require("rlang") && require("dplyr")) { dummies <- data.frame( dummy1 = sample(1:4, 40, replace = TRUE), dummy2 = sample(1:4, 40, replace = TRUE), dummy3 = sample(1:4, 40, replace = TRUE) ) x1 <- "dummy1" x2 <- c("so low", "rather low", "mid", "very hi") dummies %>% val_labels( !!x1 := c("really low", "low", "a bit mid", "hi"), dummy3 = !!x2 ) %>% get_labels() # ... and named vectors to explicitly set value labels x2 <- c("so low" = 4, "rather low" = 3, "mid" = 2, "very hi" = 1) dummies %>% val_labels( !!x1 := c("really low" = 1, "low" = 3, "a bit mid" = 2, "hi" = 4), dummy3 = !!x2 ) %>% get_labels(values = "p") }

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