example_s_mat: Example of a covariance matrix of an ellipsoid from two...

In xnicher: Estimates Ecological Niche Models Using Ellipses

Example of a covariance matrix of an ellipsoid from two environmental variables. The 2 x 2 matrix corresponded to a positive semi-definite matrix. In two dimensions encodes the rotation (orientation) and scaling of an ellipse.

Description

Example of a covariance matrix of an ellipsoid from two environmental variables. The 2 x 2 matrix corresponded to a positive semi-definite matrix. In two dimensions encodes the rotation (orientation) and scaling of an ellipse.

Usage

example_s_mat

Format

An object of class matrix (inherits from array) with 2 rows and 2 columns.

Source

<doi:10.1016/j.ecolmodel.2021.109823>

Examples

print(example_s_mat)

xnicher documentation built on Sept. 15, 2026, 5:08 p.m.