makediff3

[<code>vector(1)</code>]
Ordered <code>vector</code> of survival times.

[<code>vector(1)</code>]
Vector of status.

delta

The first observation is assumed to be not censored (delta = 1).
 The Difference is computed between data point <code>i</code>
 and its neighbour that has the largest survival time but smaller than <code>y_i</code>, the survival time of <code>i</code>.

internal

Performs support vectors analysis for data sets with survival
outcome. Three approaches are available in the package: The regression approach
takes censoring into account when formulating the inequality constraints of
the support vector problem. In the ranking approach, the inequality constraints
set the objective to maximize the concordance index for comparable pairs
of observations. The hybrid approach combines the regression and ranking
constraints in the same model.

Cesaire Fouodo

survivalsvm

Survival Support Vector Analysis

makediff3 function

<dl><dt>Y</dt>
<dd>[<code>vector(1)</code>] 
Ordered <code>vector</code> of survival times.</dd>
<dt>delta</dt>
<dd>[<code>vector(1)</code>] 
Vector of status.</dd></dl>

Arguments

Diffmatrix — makediff3

<dl>

<dt>Y</dt>
<dd>[<code>vector(1)</code>] 
Ordered <code>vector</code> of survival times.</dd>


<dt>delta</dt>
<dd>[<code>vector(1)</code>] 
Vector of status.</dd>

</dl>

`Type`	type of makediff function used to compute differences between neighbours.
`Mat`	matrix used to compute differences between comparable data points.

makediff3: `Diffmatrix`

Description

Usage

Value

Arguments

See Also

Examples