# Lazy (Non-Standard) Evaluation

## Documentation for package ‘lazyeval’ version 0.2.2

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## 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