eval
evaluates an R expression in a specified environment. NOTE: This man page is for the eval
S4 generic function
defined in the BiocGenerics package.
See ?base::eval
for the default method
(defined in the base package).
Bioconductor packages can define specific methods for objects
not supported by the default method.
eval(expr, envir=parent.frame(), enclos=if (is.list(envir) || is.pairlist(envir)) parent.frame() else baseenv())
?base::eval
) or by the additional
methods defined in Bioconductor packages.
expr
is to be evaluated.
May be any object supported by the default method
(see ?base::eval
) or by the additional
methods defined in Bioconductor packages.
?base::eval
for a description of
this argument.
?base::eval
for the value returned by the
default method.Specific methods defined in Bioconductor packages should
behave as consistently as possible with the default method.
base::eval
for the default eval
method.
showMethods
for displaying a summary of the
methods defined for a given generic function.
selectMethod
for getting the definition of
a specific method.
eval
method (defined for
when the expr
and envir
arguments are an
expression and a Vector object,
respectively).
eval # note the dispatch on 'expr' and 'envir' args only
showMethods("eval")
selectMethod("eval", c("ANY", "ANY")) # the default method
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