The is.format function can be used to determine if an object is a
user-defined format of class "fmt".
is.format(x)
| x | A user-defined format of class "fmt". |
|---|
A logical value or TRUE or FALSE.
The is.format function returns TRUE if the object passed is a
user-defined format. User-defined formats are defined using the value
function. See the value
function help for further details.
value to define a format,
condition to define the conditions for a format, and
fapply to apply the format to a vector.
Other fmt:
as.data.frame.fmt(),
as.fmt.data.frame(),
as.fmt(),
condition(),
labels.fmt(),
print.fmt(),
value()
# Define format fmt1 <- value(condition(x == "A", "Label A"), condition(x == "B", "Label B"), condition(TRUE, "Other")) # Check for format is.format(fmt1) is.format("A")