raw_flowlength_uniform {spatialwarnings} | R Documentation |
Flow length (uniform slope)
Description
Compute a simple approximation of the flow length assuming a constant slope
Usage
raw_flowlength_uniform(mat, slope, cell_size)
Arguments
mat |
The input matrix (must be a logical matrix) |
slope |
The slope of the area documented by the matrix (in degrees). |
cell_size |
The horizontal size of a cell in the matrix (as viewed from above). |
Details
This function computes the Flowlength of a given matrix, using a
uniform approximation (the slope is constant across the whole matrix,
with maximum slope being from the top of the matrix to its bottom),
as per Rodriguez et al. (2017). See flowlength_sews
for
more details.
Value
A named vector of length 1 containing the flow length numerical value
References
Rodriguez, F., A. G. Mayor, M. Rietkerk, and S. Bautista. 2017. A null model for assessing the cover-independent role of bare soil connectivity as indicator of dryland functioning and dynamics. Ecological Indicators.
See Also
indictest
, to test the significance of indicator values.
Examples
## Not run:
raw_flowlength_uniform(arizona[[1]], slope = 20, cell_size = 1)
## End(Not run)