deldir: seaweed – R documentation

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seaweed

Description

A data frame whose columns are the coordinates of the centroids of the cells in a seaweed frond. The points are estimates-by-eye of where the centroids of the cells occur.

Usage

data("seaweed")

Format

A data frame with 266 observations on the following 2 variables.

x: The x-coordinates of the cell centroids.
y: The y-coordinates of the cell centroids.

Source

These data were kindly supplied by Dr. John Bothwell of the Department of Biosciences, Durham University. The data were collected by Kevin Yun and Georgia Campbell, members of Dr. Bothwell's research group.

Examples

# data(seaweed)
# It is unnecessary to use \code{data} since \code{seaweed} is
# a "first class object".  It is "lazily loaded".

dsw <- deldir(seaweed)
isw <- tileInfo(dsw)
# Expand the width of the terminal window.
options(width=120)
isw
tsw <- tile.list(dsw)
plot(tsw,number=TRUE,col.num="red",cex=0.5,adj=0.5)

deldir

Delaunay Triangulation and Dirichlet (Voronoi) Tessellation

v0.2-10

GPL (>= 2)

Authors

Rolf Turner

Initial release

2021-02-16