sampleTransect: Sample transect

Description Usage Arguments Note Author(s) Examples

View source: R/sample.transect.R

Description

Creates random transects from points and generates sample points along each transect

Usage

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sampleTransect(x, min.length, max.length, id = NULL, ...)

Arguments

x

A sp point object

min.length

Minimum length of transect(s)

max.length

Maximum length of transect(s)

id

A unique indetification column in x

...

Additional arguments passed to sample.line

Note

Function create random direction and length transects and then creates a point sample along each transect. The characteristic of the sample points are defined by arguments passed to the sample.line function

Author(s)

Jeffrey S. Evans <[email protected]>

Examples

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library(sp)
data(meuse)
coordinates(meuse) <- ~x+y
proj4string(meuse) <- CRS("+init=epsg:28992")
meuse <- meuse[sample(1:nrow(meuse),10),]

transects <- sampleTransect(meuse, min.length=200, max.length=500, min.samp = 3)
  plot(transects$transects)
    plot(transects$samples, pch=20, add=TRUE)

jeffreyevans/spatialEco documentation built on Aug. 11, 2018, 1:08 p.m.