forestSAS v1.0.1

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Forest Spatial Structure Analysis Systems

In recent years, there has been considerable interest in a group of neighborhood-based structural parameters that properly express the spatial structure characteristics of tree populations and forest communities and have strong operability for guiding forestry practices.the 'forestSAS' package provide more important information and allow us to better understand and analyze the fine-scale spatial structure of tree populations and stand structure.

Readme

forestSAS

An R package for forest spatial structure analysis systems.

In recent years, there has been considerable interest in a group of neighborhood-based structural parameters that properly express the spatial structure characteristics of tree populations and forest communities and have strong operability for guiding forestry practices.forestSAS package provide more important information and allow us to better understand and analyze the fine-scale spatial structure of tree populations and stand structure.

Installation

The development version from github:

# install.packages("devtools")
devtools::install_github("Zongzheng/forestSAS")
library(spatstat)
library(forestSAS)

##Citation

Chai ZZ.2016.forestSAS:An R package for forest spatial structure analysis systems.URL:https://github.com/Zongzheng/forestSAS.

Functions in forestSAS

Name Description
rebuild.ppp Reestablishing an object of class "ppp"
shrinkedge Shrink the edges for the point pattern
list_to_matrix Converting list to matrix
pv Preference value
nnoverlap Crown overlap among nearest neighbour
treedata Sample data for analizing the forest spatial structure.
uniform.angle A forest spatial structure index characterizing tree spatial distribution patterns
storeydvd Dividing the forest storeies
tree.ppp Sample data for analizing the forest spatial structure.
nnIndex Get the marks of nearest neighbour in the point pattern
mingling A forest spatial structure index characterizing tree diversity
nnangle Identify the angle among nearest neighbours
nnid Find the id of nearest neighbour for each point.
crowding A forest spatial structure index characterizing crowding degree.
dominance A forest spatial structure index characterizing tree dominance
buffer Identify the buffer zone in the point pattern
addmark.ppp Add marks for a point pattern
ideal A forest spatial structure index characterizing distribution of ideal state for tree attributies.
expandedge Expand the edges for the point pattern with replication.
fsasN4 A body function to analyze the forest saptial structure.
forestSAS-package forestSAS
differ A forest spatial structure index characterizing differation degree of tree attributies.
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Details

Date 2019-01-02
Type Package
License GPL (>= 2)
LazyData TRUE
NeedsCompilation no
Repository CRAN
Packaged 2019-01-02 13:28:52 UTC; Administrator
Date/Publication 2019-01-11 18:10:02 UTC
depends R (>= 3.4.0)
imports spatstat
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