Spatially Balanced Sample Draws for Spatial Objects


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Documentation for package ‘SDraw’ version 2.1.3

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BAS-package Selection of spatially balanced samples.
HAL-package Selection of spatially balanced samples.
SDraw-package Selection of spatially balanced samples.
SSS-package Selection of spatially balanced samples.
bas.line Draws a Balanced Acceptance Sample (BAS) from a linear resource (line).
bas.point Draws a Balanced Acceptance Sample (BAS) from a discrete resource (points).
bas.polygon Draws a Balanced Acceptance Sample (BAS) from an area resource (polygons).
extended.gcd Extended Greatest Common Denominator (GCD) algorithm.
GRTS Selection of spatially balanced samples.
grts.line Draw a equi-probable GRTS sample from a linear (line) resource.
grts.point Draw a equi-probable GRTS sample from a discrete (point) resource.
grts.polygon Draw a equi-probable GRTS sample from an area (polygon) resource.
hal.line Draws a Halton Lattice sample from a linear (line) resource .
hal.point Draws a Halton Lattice sample from a discrete (point) resource.
hal.polygon Draws a Halton Lattice sample from an area (polygon) resource.
halton Compute points in the Halton sequence.
halton.frame Construct a Halton sampling frame.
halton.indices Halton indices
halton.indices.CRT Halton indices by the Chinese Remainder Theorem (CRT)
halton.indices.vector Halton indices for an entire vector of coordinates
halton.lattice Halton lattice inside a rectangle
halton.lattice.polygon Halton lattice inside a 'SpatialPolygon*' object.
HI.coast SpatialLinesDataFrame of the coastline of Hawaii, USA
lineLength Line length
maxU Maximum integer used in the BAS routines
plotSample Plot sample and frame
polygonArea Polygon area
primes Prime numbers
SDraw Selection of spatially balanced samples.
sdraw Sample draws from spatial objects.
sdraw-method Sample draws from spatial objects.
sdraw.SpatialLines Sample draws from spatial objects.
sdraw.SpatialPoints Sample draws from spatial objects.
sdraw.SpatialPolygons Sample draws from spatial objects.
SRS Selection of spatially balanced samples.
srs.line Draw a Simple Random Sample (SRS) from a linear resource.
srs.point Draw a Simple Random Sample (SRS) from a point resource or finite population frame.
srs.polygon Draws a Simple Random Sample (SRS) from an area resource (polygons).
sss.line Draw a Simple Systematic Sample (SSS) from a linear resource.
sss.point Draw a Simple Systematic Sample (SSS) from a point resource or finite population frame.
sss.polygon Draws a Simple Systematic Sample (SSS) from an area resource (polygons).
voronoi.polygons Calculate Voronoi polygons for a set of points
WA SpatialPolygonsDataFrame for the state of Washington, USA
WA.cities SpatialPointsDataFrame of cities in Washington state, USA
WY SpatialPolygonsDataFrame of counties in the state of Wyoming, USA
_PACKAGE Selection of spatially balanced samples.