Description Objects from the Class Slots Methods Author(s) References See Also Examples
This virtual class facilitates the definition of subclasses that will encapsulate the basic information required to define individual areal sampling methods used in forestry.
For example, as detailed in “The ArealSampling Class” vignette, we may define subclasses based on whether the sampling methods are for standing trees or downed logs. Other classes, like fixed-area plots, could span these two main subclasses.
A virtual Class: No objects may be created from it.
description
:Object of class "character"
: Some
descriptive text about this class.
units
:Object of class "character"
: A character
string specifying the units of measure. Legal values are “English”
and “metric.”
signature(x = "ArealSampling", y = "missing")
: Graphical
display of the object. Minimal display is the object
location
.
signature(object = "ArealSampling")
: Show main components or
summary of an object.
signature(object = "ArealSampling")
: Concise summary of
the object.
Jeffrey H. Gove
Gove, J. H. and Van Deusen, P. C. 2011. On fixed-area plot sampling for
downed coarse woody debris. Forestry. Forestry 84:109–117.
"circularPlot
" for a circular plot
subclass.
"pointRelascope
" for the point relascope
sampling subclass.
"perpendicularDistance
" for the
perpendicular distance sampling subclass.
"distanceLimited
" for the
distance limited sampling subclass.
"angleGauge
" for horizontal point sampling subclass.
"lineSegment
" for the line-based subclass.
1 | showClass("ArealSampling")
|
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