bin_midpoints

Internal helper for the second-order plotting code. A finite-volume cell
average $N_j = (1/\Delta w_j)\int_{w_j}^{w_{j+1}} N\,dw$ does not live at
the left bin edge $w_j$ but at the geometric bin centre
$$w^*_j = \sqrt{w_j\,w_{j+1}} = w_j\sqrt{\beta},$$
where $\beta = w_{j+1}/w_j$ is the (constant) bin ratio of the
logarithmic grid. This is the log-symmetric, second-order-correct location at
which to plot a bin-averaged quantity (it is exact for the community spectrum
$N\propto w^{-2}$). It is a uniform half-bin shift to the right on the log
axis, the same for the consumer grid <code>w</code> and the full prey/resource grid
<code>w_full</code>.

internal

A set of classes and methods to set up and run multi-species, trait
based and community size spectrum ecological models, focused on the marine
environment.

Gustav Delius

mizer

Dynamic Multi-Species Size Spectrum Modelling

Finlay Scott

Julia Blanchard

Ken Andersen

Richard Southwell

bin_midpoints function

<dl><dt>params</dt>
<dd>A MizerParams object.</dd>
<dt>w_full</dt>
<dd>If <code>TRUE</code>, return the centres of the full (resource) grid
<code>params@w_full</code>; otherwise the consumer grid <code>params@w</code>.</dd></dl>

Arguments

Geometric bin centres of the size grid — bin_midpoints

<dl>

<dt>params</dt>
<dd>A MizerParams object.</dd>


<dt>w_full</dt>
<dd>If <code>TRUE</code>, return the centres of the full (resource) grid
<code>params@w_full</code>; otherwise the consumer grid <code>params@w</code>.</dd>

</dl>

bin_midpoints: Geometric bin centres of the size grid

Description

Usage

Value

Arguments