SURDES: Functions for a stratified SURvey DESign

A stratified survey design method that selects sampling points in a given territory using environmental and spatial distances as surrogates of overall diversity. The procedure minimises the variation uncovered by the selected points using a set of consecutive criteria repeated iteratively. In each iteration, a p-median allocation criterion is used to define a vector of preselected sites, then a set of user defined conditions is applied to restrict the preselected sites so that one location is selected in each iteration.

Author
Nagore Garcia Medina & Bernardo Garcia Carreras
Date of publication
None
Maintainer
Nagore Garcia Medina <ngmedina@gmail.com>
License
GPL-2
Version
1.0

View on R-Forge

Man pages

alloc
Site allocation procedure using one matrix
allocTM
Site allocation criterion that uses two initial matrices
conditions
Additional conditions
criteria
Criteria for the additional conditions
env
Matrix of environmental distances
geogr
Matrix of geographic distances.
SURDES-package
Functions for survey design based on environmental distance...
vectores
A matrix inlcuding initial localities and additional...
vini
A vector with the starting points

Files in this package

SURDES
SURDES/NAMESPACE
SURDES/data
SURDES/data/criteria.rda
SURDES/data/vini.rda
SURDES/data/geogr.rda
SURDES/data/env.rda
SURDES/data/vectores.rda
SURDES/data/conditions.rda
SURDES/R
SURDES/R/allocTM.R
SURDES/R/alloc.R
SURDES/DESCRIPTION
SURDES/man
SURDES/man/allocTM.Rd
SURDES/man/geogr.Rd
SURDES/man/SURDES-package.Rd
SURDES/man/vini.Rd
SURDES/man/vectores.Rd
SURDES/man/criteria.Rd
SURDES/man/alloc.Rd
SURDES/man/env.Rd
SURDES/man/conditions.Rd