Modified isotropic Sum of Exponentially Decaying Contributions (SEDC) covariates

Calculate toxic release values for polygons or isotropic buffer point locations. Returns a data.frame object containing locs_id and variables for each chemical in from.

Usage

calc_tri_mod(from = NULL, locs, locs_id = "site_id", radius = 1000L, ...)

Arguments

from

SpatVector(1). Output of process_tri().

locs

sf/SpatVector. Locations where TRI variables are calculated.

locs_id

character(1). Unique site identifier column name. Default is "site_id".

radius

integer(1). Circular buffer radius.

...

Placeholders.

Value

a data.frame or SpatVector object

Note

U.S. context.

Author

Insang Song, Mariana Kassien