default.splines

Construct a list of <code>hero_bsplines</code> using the
default values suggested by Ruppert, Wand, and Carroll
(2003). Specifically, if
<code>r = range(evalargs[[i]])</code> and
<code>l = length(evalargs[[i]])</code>, then Ruppert, Wand,
and Carroll (2003) suggest
<code>nknots = min(ceiling(l/4), 35)</code> and the function
returns the <code>hero_bspline</code> for that dimension as
<code>bspline(r, nknots = nknots)</code>.

An implementation of the sandwich smoother proposed in Fast Bivariate Penalized Splines by Xiao et al. (2012) <doi:10.1111/rssb.12007>. A hero is a specific type of sandwich. Dictionary.com (2018) <https://www.dictionary.com> describes a hero as: a large sandwich, usually consisting of a small loaf of bread or long roll cut in half lengthwise and containing a variety of ingredients, as meat, cheese, lettuce, and tomatoes. Also implements the spatio-temporal sandwich smoother of French and Kokoszka (2021) <doi:10.1016/j.spasta.2020.100413>.

Joshua French

hero

Spatio-Temporal (Hero) Sandwich Smoother

default.splines function

<dl><dt>evalargs</dt>
<dd>A list of equidistant sequences.</dd></dl>

default.splines: Construct default splines

Description

Usage

Value

Arguments

Author

References

Examples