riskmetric (version 0.2.5)

with.pkg_ref: Evaluate an expression in the context of a pkg_ref

Description

pkg_ref objects are environments and can be passed to with in much the same way. This specialized function makes sure that any fields within the pkg_ref have been appropriately evaluated before trying to execute the expression.

Usage

# S3 method for pkg_ref
with(data, expr, ...)

Value

the value of the evaluated expr.

Arguments

data

data to use for constructing an environment. For the default with method this may be an environment, a list, a data frame, or an integer as in sys.call. For within, it can be a list or a data frame.

expr

expression to evaluate; particularly for within() often a “compound” expression, i.e., of the form

   {
     a <- somefun()
     b <- otherfun()
     .....
     rm(unused1, temp)
   }

...

arguments to be passed to (future) methods.