spending_specs

<p><code>SpendingSpec</code> and <code>SpendingFamily</code> provide a dependency-aware and
user-friendly way to tune spending functions and their parameters.</p>

Provides systematic, dependency-aware exploration of
group sequential designs created with 'gsDesign'.
Supports reproducible grid and random search over user-defined
candidate sets, parallel evaluation via the 'future' framework,
standardized metric extraction, and auditable reporting for
design-space evaluation and trade-off analysis.
Methods for group sequential design are described in
Anderson (2025) <doi:10.32614/CRAN.package.gsDesign>.
The 'future' framework for parallel processing is described in
Bengtsson (2021) <doi:10.32614/RJ-2021-048>.

Nan Xiao

spending_specs: Spending function specifications

Description

Arguments