HillP: Parallelised Hill's diversity index

In rasterdiv: Diversity Indices for Numerical Matrices

Parallelised Hill's diversity index

Description

Parallelised computation of Hill's diversity index.

Usage

HillP(rasterm, window, alpha, na.tolerance, debugging, np)

Arguments

rasterm	Input data.
window	Half of the side of the square moving window.
alpha	Alpha value for the order of diversity in Hill's Index.
na.tolerance	A numeric value between 0.0 and 1.0, which indicates the proportion of NA values that will be tolerated to calculate the index in each moving window over rasterm. If the relative proportion of NA's in a moving window is bigger than na.tolerance, then the value of the window will be set as NA; otherwise, the index will be calculated considering the non-NA values. Default value is 0.0 (i.e., no tolerance for NA's).
debugging	A boolean variable set to FALSE by default. If TRUE, additional messages will be printed for debugging purposes.
np	Number of processes for parallel computation.

Value

Matrix or a list of matrices with the Hill index computed through a moving window of the given size.

Author(s)

Marcantonio Matteo [e-mail], Martina Iannacito [e-mail], Duccio Rocchini [e-mail]

See Also

Hill

rasterdiv documentation built on Oct. 14, 2024, 5:10 p.m.