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aspace (version 2.5)

A collection of functions for estimating centrographic statistics and computational geometries for spatial point patterns

Description

A collection of functions for computing centrographic statistics (e.g., standard distance, standard deviation ellipse, standard deviation box), and minimum convex polygons (MCP) for observations taken at point locations. A tool is also provided for converting geometric objects associated with the centrographic statistics, and MCPs into ESRI Shapefiles. Separate plotting functions have been developed for each measure.

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Version

Install

install.packages('aspace')

Monthly Downloads

918

Version

2.5

License

GPL (>= 2)

Maintainer

Ron N Buliung

Last Published

August 20th, 2010

Functions in aspace (2.5)

asin_d

Compute inverse sine with angle given in degrees
activities

Demo Data: x and y coordinates of 10 specified point locations
plot_sdd

Plot the Standard Distance Deviation (Standard Distance)
CMD

Centre of Minimum Distance (CMD) Calculator
aspace-package

A collection of functions for estimating centrographic statistics and computational geometries for spatial point patterns
cos_d

Compute cosine with angle given in degrees
acos_d

Compute inverse cosine with angle given in degrees
CF

Central Feature (CF) Calculator
mean_centre

Mean Centre Calculator
calc_sdd

Calculate the Standard Distance Deviation (Standard Distance)
plot_box

Plot the Standard Distance Box
ellipse3

Ellipse drawing tool
median_centre

Median Centre Calculator
plot_sde

Plot the Standard Deviation Ellipse
r.BOX

Demo Data: Standard Deviation Box Output Object
tan_d

Compute tangent with angle given in degrees
distances

Multiple Euclidean distance calculator
calc_box

Calculate the Standard Deviation Box
calc_mcp

Computing the Minimum Convex Polygon (MCP)
wts

Weights vector
r.MCP

Demo Data: Minimum Convex Polygon Output Object
atan_d

Compute inverse tangent with angle given in degrees
calc_sde

Calculating the Standard Deviation Ellipse
plot_mcp

Plot the Minimum Convex Polygon
makeshapes

Builder of ESRI Shapefiles
r.SDE

Demo Data: Standard Deviation Ellipse Output Object
sin_d

Compute sine with angle given in degrees
as_radians

Converts degrees to radians
r.SDD

Demo Data: Standard Deviation Distance Output Object
centre

Demo Data: Coordinates of a single source, centre, location