check_for_package

Some functions not pertaining to the package core require additional 
libraries. These libraries are listed as *suggested* in the `DESCRIPTION` 
When such a function is called by a user who does not have the respective 
libraries installed, we should notice that and notify the user. This is the 
purpose of this *function* `check_for_package`.

Run grass growth simulations using a grass growth model based
on ModVege (Jouven, M., P. Carrère, and R. Baumont "Model Predicting
Dynamics of Biomass, Structure and Digestibility of Herbage in Managed
Permanent Pastures. 1. Model Description." (2006)
<doi:10.1111/j.1365-2494.2006.00515.x>). The implementation in
this package contains a few additions to the above cited version of ModVege,
such as simulations of management decisions, and influences of snow cover.
As such, the model is fit to simulate grass growth in mountainous
regions, such as the Swiss Alps. The package also contains routines for
calibrating the model and helpful tools for analysing model outputs and
performance.

Kevin Kramer

growR

Implementation of the Vegetation Model ModVege

check_for_package function

<dl><dt>package</dt>
<dd>Name of the package to check for.</dd>
<dt>stop</dt>
<dd>Toggle whether an error should be thrown (`TRUE`) or a warning 
generated (`FALSE`).</dd></dl>

Arguments

Check if *package* is available — check_for_package

<dl>

<dt>package</dt>
<dd>Name of the package to check for.</dd>


<dt>stop</dt>
<dd>Toggle whether an error should be thrown (`TRUE`) or a warning 
generated (`FALSE`).</dd>

</dl>

check_for_package: Check if package is available

Description

Usage

Value

Arguments

Details