efourier_i

<code>efourier_i</code> uses the inverse elliptical Fourier transformation to
calculate a shape, when given a list with Fourier coefficients, typically
obtained computed with efourier.

The goal of 'Momocs' is to provide a complete, convenient,
reproducible and open-source toolkit for 2D morphometrics.
It includes most common 2D morphometrics approaches on outlines, open outlines,
configurations of landmarks, traditional morphometrics, and facilities for data preparation,
manipulation and visualization with a consistent grammar throughout.
It allows reproducible, complex morphometrics analyses and other morphometrics approaches
should be easy to plug in, or develop from, on top of this canvas.

Vincent Bonhomme

Momocs

Morphometrics using R

Julien Claude

efourier_i function

<dl><dt>ef</dt>
<dd><code>list</code>. A list containing $a_n$, $b_n$, $c_n$ and
$d_n$ Fourier coefficients, such as returned by <code>efourier</code>.</dd>
<dt>nb.h</dt>
<dd><code>integer</code>. The number of harmonics to use. If not
specified, <code>length(ef$an)</code> is used.</dd>
<dt>nb.pts</dt>
<dd><code>integer</code>. The number of points to calculate.</dd></dl>

Arguments

Inverse elliptical Fourier transform — efourier_i

<dl>

<dt>ef</dt>
<dd><code>list</code>. A list containing $a_n$, $b_n$, $c_n$ and
$d_n$ Fourier coefficients, such as returned by <code>efourier</code>.</dd>


<dt>nb.h</dt>
<dd><code>integer</code>. The number of harmonics to use. If not
specified, <code>length(ef$an)</code> is used.</dd>


<dt>nb.pts</dt>
<dd><code>integer</code>. The number of points to calculate.</dd>

</dl>

efourier_i: Inverse elliptical Fourier transform

Description

Usage

Value

Arguments

Details

References

See Also

Examples