coeff.split

A <code>vector</code> of harmonic coefficients.

<code>numeric</code>. The maximum harmonic rank.

nb.h

<code>numeric</code>. Must be set to 2 for <code>rfourier</code> and <code>tfourier</code> were used.

<code>coeff.split</code> returns a named list of coordinates from a vector of harmonic coefficients. For instance, harmonic coefficients are arranged in the <code>@coeff</code> slot of <code>Coe</code>-objects in that way:
$$A_1, \dots, A_n, B_1, \dots, B_n, C_1, \dots, C_n, D_1, \dots, D-n$$ after an elliptical Fourier analysis (see <a href="/link/eFourier?package=Momocs&version=0.2-6" rd-options="" data-mini-rdoc="Momocs::eFourier">eFourier</a> and <a href="/link/efourier?package=Momocs&version=0.2-6" rd-options="" data-mini-rdoc="Momocs::efourier">efourier</a>) while $$C_n and D_n$$ harmonic are absent for radii variation and tangent angle approaches (see <a href="/link/rfourier?package=Momocs&version=0.2-6" rd-options="" data-mini-rdoc="Momocs::rfourier">rfourier</a> and <a href="/link/tfourier?package=Momocs&version=0.2-6" rd-options="" data-mini-rdoc="Momocs::tfourier">tfourier</a> respectively). This function is used internally but might be of interest elwewhere.

utilities

Momocs is intended to ease and popularize shape analysis
        of outlines (especially using elliptical Fourier analysis). It
        mostly hinges on the functions developed in Morphometrics with
        R (Claude, 2008). From outline extraction of images and
        elliptical Fourier calculation to multivariate analysis and the
        visualization of transformations within the morphological
        space, Momocs provides a complete and convenient toolkit to
        specialists within every field that are, or may be, interested
        in morphological comparisons of outlines.

coeff.split: Converts a numerical description of harmonic coefficients to a named list.

Description

Usage

Arguments

Value

Examples