NLMR (version 1.1)

nlm_planargradient: nlm_planargradient

Description

Simulates a planar gradient neutral landscape model.

Usage

nlm_planargradient(ncol, nrow, resolution = 1, direction = NA, rescale = TRUE)

Arguments

ncol

[numerical(1)] Number of columns forming the raster.

nrow

[numerical(1)] Number of rows forming the raster.

resolution

[numerical(1)] Resolution of the raster.

direction

[numerical(1)] Direction of the gradient in degrees, if unspecified the direction is randomly determined.

rescale

[logical(1)] If TRUE (default), the values are rescaled between 0-1.

Value

RasterLayer

Details

Simulates a linear gradient sloping in a specified or random direction.

References

Palmer, M.W. (1992) The coexistence of species in fractal landscapes. The American Naturalist, 139, 375 - 397.

See Also

nlm_distancegradient, nlm_edgegradient

Examples

# NOT RUN {
# simulate planar gradient
planar_gradient <- nlm_planargradient(ncol = 200, nrow = 200)

# }
# NOT RUN {
# visualize the NLM
landscapetools::show_landscape(planar_gradient)
# }
# NOT RUN {
# }