checkAndReturnsNPlan

Check consistency between nPlan and the testType for one and two-sample z and t-tests

Functions to design and apply tests that are anytime valid. The
functions can be used to design hypothesis tests in the prospective/randomised
control trial setting or in the observational/retrospective setting. The
resulting tests remain valid under both optional stopping and optional
continuation. The current version includes safe t-tests and safe tests of
two proportions. For details on the theory of safe tests, see
Grunwald, de Heide and Koolen (2019) "Safe Testing" <arXiv:1906.07801>,
for details on safe logrank tests see ter Schure, Perez-Ortiz, Ly and Grunwald
(2020) "The Safe Logrank Test: Error Control under Continuous Monitoring with
Unlimited Horizon" <arXiv:2011.06931v3> and Turner, Ly and Grunwald (2021)
"Safe Tests and Always-Valid Confidence Intervals for contingency tables and
beyond" <arXiv:2106.02693> for details on safe contingency table tests.

Alexander Ly

safestats

Safe Anytime-Valid Inference

Rosanne Turner

Muriel Felipe Perez-Ortiz

Judith ter Schure

Peter Grunwald

checkAndReturnsNPlan function

<dl><dt>nPlan</dt>
<dd>optional numeric vector of length at most 2. When provided, it is used to find the safe test
defining parameter phiS. Note that if the purpose is to plan based on nPlan alone, then both meanDiffMin
and beta should be set to NULL.</dd>
<dt>ratio</dt>
<dd>numeric &gt; 0 representing the randomisation ratio of condition 2 over condition 1. If testType
is not equal to "twoSample", or if nPlan is of length(1) then ratio=1.</dd>
<dt>testType</dt>
<dd>either one of "oneSample", "paired", "twoSample".</dd></dl>

Arguments

Check consistency between nPlan and the testType for one and two-sample z and t-tests — checkAndReturnsNPlan

<dl>

<dt>nPlan</dt>
<dd>optional numeric vector of length at most 2. When provided, it is used to find the safe test
defining parameter phiS. Note that if the purpose is to plan based on nPlan alone, then both meanDiffMin
and beta should be set to NULL.</dd>


<dt>ratio</dt>
<dd>numeric &gt; 0 representing the randomisation ratio of condition 2 over condition 1. If testType
is not equal to "twoSample", or if nPlan is of length(1) then ratio=1.</dd>


<dt>testType</dt>
<dd>either one of "oneSample", "paired", "twoSample".</dd>

</dl>

checkAndReturnsNPlan: Check consistency between nPlan and the testType for one and two-sample z and t-tests

Description

Usage

Value

Arguments