Prob.Null

Calculates the probability of the event occurring before <code>t0 + tau</code>,
given survival up to <code>t0</code>, without using any covariate information.

Nonparametric methods for landmark prediction of long-term survival outcomes, incorporating covariate and short-term event information. The package supports the construction of flexible varying-coefficient models that use discrete covariates, as well as multiple continuous covariates.
The goal is to improve prediction accuracy when censored short-term events are available as predictors, using robust nonparametric procedures that do not require correct model specification and avoid restrictive parametric assumptions found in alternative methods.
More information on these methods can be found in Parast et al. 2012 <doi:10.1080/01621459.2012.721281>,
Parast et al. 2011 <doi:10.1002/bimj.201000150>, and Parast and Cai 2013 <doi:10.1002/sim.5776>.
A tutorial for this package is available here: <https://www.laylaparast.com/landpred>.

Layla Parast

landpred

Landmark Prediction of a Survival Outcome

Dylan Huynh

Prob.Null function

<dl><dt>t0</dt>
<dd>The landmark time.</dd>
<dt>tau</dt>
<dd>The prediction window.</dd>
<dt>data</dt>
<dd>The data frame.</dd>
<dt>weight</dt>
<dd>Optional weights.</dd>
<dt>newdata</dt>
<dd>Optional new data for prediction.</dd></dl>

Arguments

Calculate Probability with No Information — Prob.Null

<dl>

<dt>t0</dt>
<dd>The landmark time.</dd>


<dt>tau</dt>
<dd>The prediction window.</dd>


<dt>data</dt>
<dd>The data frame.</dd>


<dt>weight</dt>
<dd>Optional weights.</dd>


<dt>newdata</dt>
<dd>Optional new data for prediction.</dd>

</dl>

Prob.Null: Calculate Probability with No Information

Description

Usage

Value

Arguments