Heading pseudo-function normally overrides the automatic
heading on the following items in a table. Setting
override=FALSE is used in automatically
A legal R variable name, or a character constant.
Whether this heading should override one that is already present.
nameargument will be interpreted as an expression evaluating to a character value.
See Details below.
This replaces the automatic heading or row label on the following item
name or string as specified. If no argument
is given, the heading or label is suppressed.
An alternative form of
... is an expression to be displayed in the table.
override = FALSE, the label is only supplied if there is no other label.
This is used in the code for
nearData argument is rarely used. It
affects the situation where
"+" is used to
join tables with different numbers of labels.
nearData = TRUE (the default), the shorter
list of labels are pushed close to the data, i.e.
to the right side for row labels, the bottom for
column labels. If
FALSE, they are pushed
to the opposite side.
This is a “pseudo-function”: it takes the form of a function call, but is
never actually called: it is
handled specially by
tabular( (Sepal.Length+Sepal.Width) ~ (Heading(Mean)*mean + (S.D.=sd)), data=iris ) #> #> Mean S.D. #> Sepal.Length 5.843 0.8281 #> Sepal.Width 3.057 0.4359 heading <- "Variable Heading" tabular( (Sepal.Length+Sepal.Width) ~ (Heading(heading, character.only = TRUE)*mean + (S.D.=sd)), data=iris ) #> #> Variable Heading S.D. #> Sepal.Length 5.843 0.8281 #> Sepal.Width 3.057 0.4359