Calculates the eigenvalues of the Laplacian Matrix, where the
Laplacian matrix is the matrix representation of a graph, in this case a
phylogeny.
When the R package RSpectra is available, a faster calculation can be used,
which does not calculate all eigenvalues, but only the maximum and minimum.
As such, when using this option, the vector of all eigenvalues is not
returned
Usage
minmax_laplace(phy, use_rspectra = FALSE)
Arguments
- phy
phylo object or ltable
- use_rspectra
boolean to indicate whether the helping package RSpectra
should be used, in which case only the minimum and maximum values are
returned
Value
List with the minimum and maximum eigenvalues
References
Chindelevitch, Leonid, et al. "Network science inspires novel
tree shape statistics." Plos one 16.12 (2021): e0259877.