generalisedRichard

generalisedRichard.inverse

Computes the Generalised Richard growth model and its inverse
$$ y(t) = A + \frac{U - A}{(1 + \beta exp(-k (t - t_0)))^{(1/m)} }$$

A compilation of nonlinear growth models.

Daniel Rodriguez Perez

growthmodels

Nonlinear Growth Models

generalisedRichard function

<dl><dt>t</dt>
<dd>time</dd>
<dt>A</dt>
<dd>the lower asymptote</dd>
<dt>U</dt>
<dd>the upper asymptote</dd>
<dt>k</dt>
<dd>growth range</dd>
<dt>m</dt>
<dd>slope of growth</dd>
<dt>beta</dt>
<dd>growth range</dd>
<dt>t0</dt>
<dd>time shift (default 0)</dd>
<dt>x</dt>
<dd>size</dd></dl>

Arguments

Author

Generalised Richard growth model — generalisedRichard

<dl>

<dt>t</dt>
<dd>time</dd>


<dt>A</dt>
<dd>the lower asymptote</dd>


<dt>U</dt>
<dd>the upper asymptote</dd>


<dt>k</dt>
<dd>growth range</dd>


<dt>m</dt>
<dd>slope of growth</dd>


<dt>beta</dt>
<dd>growth range</dd>


<dt>t0</dt>
<dd>time shift (default 0)</dd>


<dt>x</dt>
<dd>size</dd>

</dl>

generalisedRichard: Generalised Richard growth model

Description

Usage

Arguments

Author

References

Examples