evaluate_parabolic

This function evaluates the calculated values from an indicator using a parabolic function. After the optimum is reached the it stays at its plateau.

The Open Bodem Index (OBI) is a method to evaluate the quality of soils of agricultural fields in The Netherlands and the sustainability of the current agricultural practices.
The OBI score is based on four main criteria: chemical, physical, biological and management, which consist of more than 21 indicators.
By providing results of a soil analysis and management info the 'OBIC' package can be use to calculate he scores, indicators and derivatives that are used by the OBI.
More information about the Open Bodem Index can be found at <https://openbodemindex.nl/>.

Sven Verweij

OBIC

Calculate the Open Bodem Index (OBI) Score

Gerard Ros

Yuki Fujita

Kees van den Dool

Job de Pater

Nutriënten Managment Instituut 

evaluate_parabolic function

<dl><dt>x</dt>
<dd>(numeric) The values of a calc function to be converted to an evaluation</dd>
<dt>x.top</dt>
<dd>(numeric) The value at which x reaches the plateau</dd></dl>

Arguments

Evaluate using parabolic function with — evaluate_parabolic

<dl>

<dt>x</dt>
<dd>(numeric) The values of a calc function to be converted to an evaluation</dd>


<dt>x.top</dt>
<dd>(numeric) The value at which x reaches the plateau</dd>

</dl>

evaluate_parabolic: Evaluate using parabolic function with

Description

Usage

Value

Arguments

Examples