ASTTableFormula {tangram}

The root ASTNode of a formula.

Description

The root ASTNode of a formula.

The root ASTNode of a formula.

Format

R6Class object.

Super classes

tangram::ASTNode -> tangram::ASTBranch -> ASTTableFormula

Public fields

left

The AST tree for the columns.

right

The AST tree for the rows.

Methods

Public methods

• ASTTableFormula$new()

• ASTTableFormula$terms()

• ASTTableFormula$string()

• ASTTableFormula$clone()

Inherited methods

• tangram::ASTNode$set_format()
• tangram::ASTBranch$distribute()
• tangram::ASTBranch$reduce()

Method new()

Create a new formula node

Usage

ASTTableFormula$new(left, right)

Arguments

left

The left side of the "~" as an AST

right

The right side of the "~" as an AST

Method terms()

Returns all terminal nodes from left and right

Usage

ASTTableFormula$terms()

Method string()

A re-parseable string representing the AST

Usage

ASTTableFormula$string()

Method clone()

The objects of this class are cloneable with this method.

Usage

ASTTableFormula$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

ASTTableFormula$new(ASTVariable$new("x"), ASTVariable$new("y"))$string()