get_variable

get_variable.listenv

The name or index of element of interest.

name

If <code>TRUE</code>, an error is generated if <code>name</code> does not exist.

mustExist

If <code>TRUE</code>, element <code>name</code> is created if missing.

create

Get name of variable for a specific element of list environment

internal

List environments are environments that have list-like properties. For instance, the elements of a list environment are ordered and can be accessed and iterated over using index subsetting, e.g. 'x <- listenv(a = 1, b = 2); for (i in seq_along(x)) x[[i]] <- x[[i]] ^ 2; y <- as.list(x)'.

Henrik Bengtsson

listenv

Environments Behaving (Almost) as Lists

get_variable function

<dl><dt>x</dt>
<dd>A list environment.</dd>
<dt>name</dt>
<dd>The name or index of element of interest.</dd>
<dt>mustExist</dt>
<dd>If <code>TRUE</code>, an error is generated if <code>name</code> does not exist.</dd>
<dt>create</dt>
<dd>If <code>TRUE</code>, element <code>name</code> is created if missing.</dd></dl>

Arguments

Get name of variable for a specific element of list environment — get_variable

<dl>

<dt>x</dt>
<dd>A list environment.</dd>


<dt>name</dt>
<dd>The name or index of element of interest.</dd>


<dt>mustExist</dt>
<dd>If <code>TRUE</code>, an error is generated if <code>name</code> does not exist.</dd>


<dt>create</dt>
<dd>If <code>TRUE</code>, element <code>name</code> is created if missing.</dd>

</dl>

get_variable: Get name of variable for a specific element of list environment

Description

Usage

Value

Arguments