Lazy (Non-Standard) Evaluation

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Documentation for package ‘lazyeval’ version 0.2.2

• DESCRIPTION file.
• User guides, package vignettes and other documentation.
• Package NEWS.

Help Pages

as.lazy	Convert an object to a lazy expression or lazy dots.
as.lazy_dots	Convert an object to a lazy expression or lazy dots.
ast	Display a call (or expression) as a tree.
ast_	Display a call (or expression) as a tree.
as_call	Coerce an object to a name or call.
as_f_list	Build a named list from the LHS of formulas
as_name	Coerce an object to a name or call.
call_modify	Modify the arguments of a call.
call_new	Create a call by "hand"
call_standardise	Modify the arguments of a call.
dots_capture	Make a promise explicit by converting into a formula.
expr_env	Find the expression associated with an argument
expr_find	Find the expression associated with an argument
expr_label	Find the expression associated with an argument
expr_text	Find the expression associated with an argument
find_data	Evaluate a formula
function_new	Create a function by "hand"
f_capture	Make a promise explicit by converting into a formula.
f_env	Get/set formula components.
f_env<-	Get/set formula components.
f_eval	Evaluate a formula
f_eval_lhs	Evaluate a formula
f_eval_rhs	Evaluate a formula
f_interp	Interpolate a formula
f_label	Turn RHS of formula into a string/label.
f_lhs	Get/set formula components.
f_lhs<-	Get/set formula components.
f_list	Build a named list from the LHS of formulas
f_new	Create a formula object by "hand".
f_rhs	Get/set formula components.
f_rhs<-	Get/set formula components.
f_text	Turn RHS of formula into a string/label.
f_unwrap	Unwrap a formula
interp	Interpolate values into an expression.
is_atomic	Is an object a language object?
is_call	Is an object a language object?
is_formula	Is object a formula?
is_lang	Is an object a language object?
is_name	Is an object a language object?
is_pairlist	Is an object a language object?
lazy	Capture expression for later lazy evaluation.
lazy_	Capture expression for later lazy evaluation.
lazy_dots	Capture ... (dots) for later lazy evaluation.
lazy_eval	Evaluate a lazy expression.
make_call	Make a call with 'lazy_dots' as arguments.
missing_arg	Generate a missing argument.
uq	Interpolate a formula
uqf	Interpolate a formula
uqs	Interpolate a formula