get_stability

Get stability from internal_validate or internal_boot object

internal

Conduct internal validation of a clinical prediction model for a binary outcome.
Produce bias corrected performance metrics (c-statistic, Brier score, calibration intercept/slope)
via bootstrap (simple bootstrap, bootstrap optimism, .632 optimism) and cross-validation (CV optimism,
CV average). Also includes functions to assess model stability via bootstrap resampling.
See Steyerberg et al. (2001) <doi:10.1016/s0895-4356(01)00341-9>;
Harrell (2015) <doi:10.1007/978-3-319-19425-7>;
Riley and Collins (2023) <doi:10.1002/bimj.202200302>.

Stephen Rhodes

pminternal

Internal Validation of Clinical Prediction Models

get_stability function

<dl><dt>x</dt>
<dd>a internal_validate (see <code>validate</code>) or internal_boot
(see <code>boot_optimism</code>) object. The former should have been
created with method = "boot_optimism" or "boot_simple".</dd></dl>

Arguments

Get stability from internal_validate or internal_boot object — get_stability

<dl>

<dt>x</dt>
<dd>a internal_validate (see <code>validate</code>) or internal_boot
(see <code>boot_optimism</code>) object. The former should have been
created with method = "boot_optimism" or "boot_simple".</dd>

</dl>

get_stability: Get stability from internal_validate or internal_boot object

Description

Usage

Value

Arguments