givens_path

Generates the interpolation in the form needed for
tourr, modelled on geodesic_path()

internal

This method generates a tour path by interpolating between d-D frames in p-D using Givens rotations. The algorithm arises from the problem of zeroing elements of a matrix. This interpolation method is useful for showing specific d-D frames in the tour, as opposed to d-D planes, as done by the geodesic interpolation. It is useful for projection pursuit indexes which are not s invariant. See more details in Buj, Cook, Asimov and Hurley (2005) <doi:10.1016/S0169-7161(04)24014-7> and Batsaikhan, Cook and Laa (2023) <doi:10.48550/arXiv.2311.08181>.

Di Cook

woylier

Alternative Tour Frame Interpolation Method

Zola Batsaikan

Dianne Cook

Ursula Laa

givens_path function

<dl><dt>current</dt>
<dd>starting frame</dd>
<dt>target</dt>
<dd>target frame</dd>
<dt>frozen</dt>
<dd>indicator whether some dimensions fixed</dd>
<dt>...</dt>
<dd>arguments sent to later functions</dd></dl>

Arguments

Interpolation format for tourr — givens_path

<dl>

<dt>current</dt>
<dd>starting frame</dd>


<dt>target</dt>
<dd>target frame</dd>


<dt>frozen</dt>
<dd>indicator whether some dimensions fixed</dd>


<dt>...</dt>
<dd>arguments sent to later functions</dd>

</dl>

givens_path: Interpolation format for tourr

Description

Usage

Value

Arguments