sp2shape

The sp package object or object created by either the grts or
irs functions.

sp.obj

Name (without any extension) of the output shapefile.
The default is "tempfile".

shpfilename

Name (without any extension) of the projection file for
the output shapefile. The default is NULL.

prjfilename

This function creates an ESRI shapefile from an sp package object. The
function can also accommodate an object created by the grts or irs functions
in spsurvey. The type of shapefile, i.e., point, polyline, or polygon, is
determined by the class of the input object, which must be either
"SpatialDesign", "SpatialPointsDataFrame", "SpatialLinesDataFrame", or
"SpatialPolygonsDataFrame".

These functions provide procedures for selecting sites for spatial
surveys using spatially balanced algorithms applied to discrete points,
linear networks, or polygons. The probability survey designs available
include independent random samples, stratified random samples, and unequal
probability random samples (categorical or probability proportional to
size). Design-based estimation based on the results from surveys is
available for estimating totals, means, quantiles, CDFs, and linear models.
The analyses rely on package survey for most results. Variance estimation
options include a local neighborhood variance estimator that is appropriate
for spatially-balanced survey designs. A reference for the survey design
portion of the package is: D. L. Stevens, Jr. and A. R. Olsen (2004),
"Spatially-balanced sampling of natural resources.", Journal of the American
Statistical Association 99(465): 262-278, <DOI:10.1198/016214504000000250>.
Additional helpful references for this package are A. R. Olsen, T. M.
Kincaid, and Q. Payton (2012) and T. M. Kincaid and A. R. Olsen (2012), both
of which are chapters in the book "Design and Analysis of Long-Term
Ecological Monitoring Studies" (R. A. Gitzen, J. J. Millspaugh, A. B.
Cooper, and D. S. Licht (eds.), Cambridge University Press, New York,
<Online ISBN:9781139022422>).

Tom Kincaid

spsurvey

Spatial Survey Design and Analysis

Tony Olsen

Don Stevens

Christian Platt

Denis White

Richard Remington

sp2shape function

<dl class="dl-horizontal">
 <dt><code>writeShapeFilePoint</code></dt><dd>C function to create a point
 shapefile</dd>
 <dt><code>writeShapeFilePolygon</code></dt><dd>C function to create a
 polyline or polygon shapefile</dd>
 </dl>

sp2shape: Create ESRI Shapefile from sp Package Object

Description

Usage

Arguments

Value

Other Functions Required