update_adj_list

Updates the adjacency list for an R expression parse tree.

A customisable set of tools for assessing and grading
R or R-markdown scripts from students. It allows for checking correctness
of code output, runtime statistics and static code analysis. The latter
feature is made possible by representing R expressions using a tree
structure.

Agrawal Naman

autoharp

Semi-Automatic Grading of R and Rmd Scripts

Vik Gopal

Samuel Seah

Viknesh Jeya Kumar

Gabriel Ang

Ruofan Liu

National University of Singapore 

update_adj_list function

<dl><dt>update_type</dt>
<dd>This should be either "new_node" or "add_child". If it 
is a new node, an empty list component is added. If it is add child, 
then child_node should be provided too.</dd>
<dt>node_id</dt>
<dd>An integer.</dd>
<dt>node_name</dt>
<dd>The name of the new node to be added. This must be provided 
if the update_type is "new_node".</dd>
<dt>child_node</dt>
<dd>An integer.</dd>
<dt>env_ni</dt>
<dd>An environment object, possibly containing an adjacency list 
that will later be used to construct a TreeHarp object.</dd></dl>

Arguments

Update adjacency list. — update_adj_list

<dl>

<dt>update_type</dt>
<dd>This should be either "new_node" or "add_child". If it 
is a new node, an empty list component is added. If it is add child, 
then child_node should be provided too.</dd>


<dt>node_id</dt>
<dd>An integer.</dd>


<dt>node_name</dt>
<dd>The name of the new node to be added. This must be provided 
if the update_type is "new_node".</dd>


<dt>child_node</dt>
<dd>An integer.</dd>


<dt>env_ni</dt>
<dd>An environment object, possibly containing an adjacency list 
that will later be used to construct a TreeHarp object.</dd>

</dl>

update_adj_list: Update adjacency list.

Description

Usage

Value

Arguments

Details