bootstrap_survival

Draws <code>bs_samples</code> bootstrap resamples (with replacement) of the
per-observation survival curves stored in <code>gg_dta</code>, computes the column
means to obtain a bootstrapped mean curve per resample, then returns the
pointwise quantiles at <code>level_set</code> and the overall mean across
resamples.

internal

Graphic elements for exploring Random Forests using the
'randomForest' or 'randomForestSRC' package for survival, regression
and classification forests and 'ggplot2' package plotting. Implements
visualisations of the methods described in Breiman (2001)
<doi:10.1023/A:1010933404324> and Ishwaran, Kogalur, Blackstone, and
Lauer (2008) <doi:10.1214/08-AOAS169>.

John Ehrlinger

ggRandomForests

Visually Exploring Random Forests

bootstrap_survival function

<dl><dt>gg_dta</dt>
<dd>A wide <code>data.frame</code> of survival probabilities as returned
by the survival branch of <code>gg_rfsrc.rfsrc</code>, before the
optional pivot to long form. Columns <code>obs_id</code>, <code>event</code>, and
<code>group</code> (if present) are excluded from the resampling.</dd>
<dt>bs_samples</dt>
<dd>Integer; number of bootstrap resamples.</dd>
<dt>level_set</dt>
<dd>Numeric vector of length 2 giving the lower and upper
quantile probabilities for the confidence band (e.g. <code>c(0.025, 0.975)</code>
for a 95% CI).</dd></dl>

Arguments

Bootstrap pointwise confidence bands for a mean survival curve — bootstrap_survival

<dl>

<dt>gg_dta</dt>
<dd>A wide <code>data.frame</code> of survival probabilities as returned
by the survival branch of <code>gg_rfsrc.rfsrc</code>, before the
optional pivot to long form. Columns <code>obs_id</code>, <code>event</code>, and
<code>group</code> (if present) are excluded from the resampling.</dd>


<dt>bs_samples</dt>
<dd>Integer; number of bootstrap resamples.</dd>


<dt>level_set</dt>
<dd>Numeric vector of length 2 giving the lower and upper
quantile probabilities for the confidence band (e.g. <code>c(0.025, 0.975)</code>
for a 95% CI).</dd>

</dl>

bootstrap_survival: Bootstrap pointwise confidence bands for a mean survival curve

Description

Usage

Value

Arguments