safe.uniroot

Internal-use wrapper for catching errors induced by stats::uniroot

internal

Power and sample size calculations for a variety of study designs and
outcomes. Methods include t tests, ANOVA (including tests for interactions,
simple effects and contrasts), proportions, categorical data (chi-square tests
and proportional odds), linear, logistic and Poisson regression, alternative
and coprimary endpoints, power for confidence intervals, correlation
coefficient tests, cluster randomized trials, individually randomized group
treatment trials, multisite trials, treatment-by-covariate interaction effects
and nonparametric tests of location. Utilities are provided for
computing various effect sizes. Companion package to the book
"Power and Sample Size in R", Crespi (2025, ISBN:9781138591622).
Further resources available at <https://powerandsamplesize.org/>.

Catherine M. Crespi

powertools

Power and Sample Size Tools

Zichen Liu

Kristen M. McGreevy

safe.uniroot function

<dl><dt>f</dt>
<dd>The function for which the root is sought</dd>
<dt>interval</dt>
<dd>A vector containing the end-points of the interval to be searched for the root</dd></dl>

Arguments

Internal-use wrapper for catching errors induced by stats::uniroot — safe.uniroot

<dl>

<dt>f</dt>
<dd>The function for which the root is sought</dd>


<dt>interval</dt>
<dd>A vector containing the end-points of the interval to be searched for the root</dd>

</dl>

safe.uniroot: Internal-use wrapper for catching errors induced by stats::uniroot

Description

Usage

Value

Arguments

Examples