make.env

Generates environmental variables used for generating species abundances. Environmental variables may be correlated, and may follow different distributions.

 datagen 

Several tests of quantitative palaeoenvironmental reconstructions
from microfossil assemblages, including the null model tests of the
statistically significant of reconstructions developed by Telford and Birks
(2011) <doi:10.1016/j.quascirev.2011.03.002>, and tests of the effect of
spatial autocorrelation on transfer function model performance using methods
from Telford and Birks (2009) <doi:10.1016/j.quascirev.2008.12.020> and
Trachsel and Telford (2016) <doi:10.5194/cp-12-1215-2016>. Age-depth models with
generalized mixed-effect regression from Heegaard et al (2005)
<doi:10.1191/0959683605hl836rr> are also included.

Richard Telford

palaeoSig

Significance Tests for Palaeoenvironmental Reconstructions

Mathias Trachsel

make.env function

<dl> <dt>n</dt>
<dd>Number of samples to be generated.
</dd> <dt>elen</dt>
<dd>Range of the environmental variables. Single number or vector of length ndim. 
</dd> <dt>emean</dt>
<dd>Mean of the environmental variables. Single number or vector of length ndim. 
</dd> <dt>edistr</dt>
<dd>Distribution of the environmental variables. Currently 'uniform' and 'Gaussian' are supported. 
</dd> <dt>ecor</dt>
<dd>Correlation matrix of the environmental variables supplied by user. Object generated by <code>cor.mat.fun</code>. If omitted environmental variables are not correlated.
</dd> <dt>ndim</dt>
<dd>Number of environmental variables to generate. 
</dd></dl>

Arguments

Mathias Trachsel and Richard J. Telford

Author

Generates environmental variables
 — make.env

<dl>

 <dt>n</dt>
<dd>Number of samples to be generated.
</dd>

 <dt>elen</dt>
<dd>Range of the environmental variables. Single number or vector of length ndim. 
</dd>

 <dt>emean</dt>
<dd>Mean of the environmental variables. Single number or vector of length ndim. 
</dd>

 <dt>edistr</dt>
<dd>Distribution of the environmental variables. Currently 'uniform' and 'Gaussian' are supported. 
</dd>

 <dt>ecor</dt>
<dd>Correlation matrix of the environmental variables supplied by user. Object generated by <code>cor.mat.fun</code>. If omitted environmental variables are not correlated.
</dd>

 <dt>ndim</dt>
<dd>Number of environmental variables to generate. 
</dd>

</dl>

make.env: Generates environmental variables

Description

Usage

Value

Arguments

Author

References

See Also

Examples