coxfunk

Calculates minus the log likelihood function and its first and second order
derivatives for data from a Cox regression model. It is used by <code>coxreg</code>
if the argument <code>coxph = FALSE</code>

distribution

survival

Parametric proportional hazards fitting with left truncation and
right censoring for common families of distributions, piecewise constant
hazards, and discrete models. Parametric accelerated failure time models
for left truncated and right censored data. Proportional hazards
models for tabular and register data. Sampling of risk sets in Cox
regression, selections in the Lexis diagram, bootstrapping.
Broström (2022) <doi:10.1201/9780429503764>.

Göran Broström

Event History Analysis

Jianming Jin

coxfunk function

<dl><dt>beta</dt>
<dd>Regression parameters</dd>
<dt>X</dt>
<dd>The design (covariate) matrix.</dd>
<dt>offset</dt>
<dd>Offset.</dd>
<dt>rs</dt>
<dd>Risk set created by <code>risksets(..., collate_sets = TRUE)</code></dd>
<dt>what</dt>
<dd>what = 0 means only loglihood, 1 means score vector as well, 2
loglihood, score and hessian.</dd></dl>

Arguments

Author

Loglihood function (partial likelihood) of a Cox regression — coxfunk

<dl>

<dt>beta</dt>
<dd>Regression parameters</dd>


<dt>X</dt>
<dd>The design (covariate) matrix.</dd>


<dt>offset</dt>
<dd>Offset.</dd>


<dt>rs</dt>
<dd>Risk set created by <code>risksets(..., collate_sets = TRUE)</code></dd>


<dt>what</dt>
<dd>what = 0 means only loglihood, 1 means score vector as well, 2
loglihood, score and hessian.</dd>

</dl>

coxfunk: Loglihood function (partial likelihood) of a Cox regression

Description

Usage

Value

Arguments

Author

Details

See Also