vf-class

as.function,vf-method

as.vf,vf-method

coerce,function,vf-method

coerce,ANY,vf-method

coerce,vf,function-method

Class <code>vf</code> stands for &#8220;virtual function&#8221;

classes

If f <- function(x){x^2} and g <- function(x){x+1} it is
a constant source of annoyance that "f+g" is not defined.
Package 'vfunc' allows you to do this, and we have (f+g)(2)
returning 5. The other arithmetic operators are similarly
implemented. A wide class of coding bugs is eliminated.

Robin K S Hankin

vfunc

Manipulate Virtual Functions

vf-class function

Objects can be created by calls of the form <code>new("vf", ...)</code>.

Objects from the Class

<dl>
 <dt><code>.Data</code>:</dt>
<dd>Object of class <code>"function"</code></dd> 
</dl>

Slots

<dl>
 <dt>Arith</dt>
<dd><code>signature(e1 = "function", e2 = "vf")</code>: ...</dd> <dt>Arith</dt>
<dd><code>signature(e1 = "ANY", e2 = "vf")</code>: ...</dd> <dt>Arith</dt>
<dd><code>signature(e1 = "vf", e2 = "function")</code>: ...</dd> <dt>Arith</dt>
<dd><code>signature(e1 = "vf", e2 = "missing")</code>: ...</dd> <dt>Arith</dt>
<dd><code>signature(e1 = "vf", e2 = "ANY")</code>: ...</dd> <dt>Arith</dt>
<dd><code>signature(e1 = "vf", e2 = "vf")</code>: ...</dd> <dt>as.function</dt>
<dd><code>signature(x = "vf")</code>: ...</dd> <dt>as.vf</dt>
<dd><code>signature(x = "vf")</code>: ...</dd> <dt>coerce</dt>
<dd><code>signature(from = "function", to = "vf")</code>: ...</dd> <dt>coerce</dt>
<dd><code>signature(from = "ANY", to = "vf")</code>: ...</dd> <dt>coerce</dt>
<dd><code>signature(from = "vf", to = "function")</code>: ...</dd> <dt>Compare</dt>
<dd><code>signature(e1 = "function", e2 = "vf")</code>: ...</dd> <dt>Compare</dt>
<dd><code>signature(e1 = "ANY", e2 = "vf")</code>: ...</dd> <dt>Compare</dt>
<dd><code>signature(e1 = "vf", e2 = "function")</code>: ...</dd> <dt>Compare</dt>
<dd><code>signature(e1 = "vf", e2 = "ANY")</code>: ...</dd> <dt>Compare</dt>
<dd><code>signature(e1 = "vf", e2 = "vf")</code>: ...</dd> <dt>Math</dt>
<dd><code>signature(x = "vf")</code>: ...</dd>	 
</dl>

Methods

Author

Class "vf" — vf-class

<dl>
 <dt><code>.Data</code>:</dt>
<dd>Object of class <code>"function"</code></dd>

 
</dl>

<dl>
 <dt>Arith</dt>
<dd><code>signature(e1 = "function", e2 = "vf")</code>: ...</dd>

 <dt>Arith</dt>
<dd><code>signature(e1 = "ANY", e2 = "vf")</code>: ...</dd>

 <dt>Arith</dt>
<dd><code>signature(e1 = "vf", e2 = "function")</code>: ...</dd>

 <dt>Arith</dt>
<dd><code>signature(e1 = "vf", e2 = "missing")</code>: ...</dd>

 <dt>Arith</dt>
<dd><code>signature(e1 = "vf", e2 = "ANY")</code>: ...</dd>

 <dt>Arith</dt>
<dd><code>signature(e1 = "vf", e2 = "vf")</code>: ...</dd>

 <dt>as.function</dt>
<dd><code>signature(x = "vf")</code>: ...</dd>

 <dt>as.vf</dt>
<dd><code>signature(x = "vf")</code>: ...</dd>

 <dt>coerce</dt>
<dd><code>signature(from = "function", to = "vf")</code>: ...</dd>

 <dt>coerce</dt>
<dd><code>signature(from = "ANY", to = "vf")</code>: ...</dd>

 <dt>coerce</dt>
<dd><code>signature(from = "vf", to = "function")</code>: ...</dd>

 <dt>Compare</dt>
<dd><code>signature(e1 = "function", e2 = "vf")</code>: ...</dd>

 <dt>Compare</dt>
<dd><code>signature(e1 = "ANY", e2 = "vf")</code>: ...</dd>

 <dt>Compare</dt>
<dd><code>signature(e1 = "vf", e2 = "function")</code>: ...</dd>

 <dt>Compare</dt>
<dd><code>signature(e1 = "vf", e2 = "ANY")</code>: ...</dd>

 <dt>Compare</dt>
<dd><code>signature(e1 = "vf", e2 = "vf")</code>: ...</dd>

 <dt>Math</dt>
<dd><code>signature(x = "vf")</code>: ...</dd>

	 
</dl>

vf-class: Class `"vf"`

Description

Arguments

Objects from the Class

Slots

Methods

Author

Examples