R/example_s_mat.R

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.
#' @source <doi:10.1016/j.ecolmodel.2021.109823>
#' @examples
#' print(example_s_mat)
"example_s_mat"