spastr: Computing forest spatial structure indices.

In Zongzheng/forestSAS: Forest spatial structure analysis systems

Computing forest spatial structure indices.

Description

Computing forest spatial structure indices.

Usage

spastr(X_df,smark=c("spe","storey","dbh","cw","x","y"),
                 rm.id = NULL,
                 buffer = FALSE,
                 xrange=c(0,100),yrange=c(0,100),
                 xwidth=5,ywidth=5,
                 buf.xwid = 5, buf.ywid = 5,
                 exclusion = FALSE)

Arguments

X_df	Forest community data (object of class "data.frame")
smark	Selected marks to compute forest spatial structure indices.
rm.id	Needed removed the specific rows in the point pattern, refer to the id.
buffer	if buffer is TRUE,show the all of data with buffer and core zone. if buffer is FALSE,only show the data in the core zone.
buf.xwid	The width of buffer zone in the x coordinates of data points.
buf.ywid	The width of buffer zone in the y coordinates of data points.
xrange	Range of X axes
yrange	Range of Y axes
xwidth	Length of buffer zone of X axes
ywidth	Length of buffer zone of Y axes
exclusion	Wether including the data of the buffer zone, if exclude is TRUE the result return the data remove the data of the buffer zone, and only the data of the core zone;if exclude is FALSE the result return the data with buffer and core zone.

Details

NULL

Value

NULL

Author(s)

Zongzheng Chai, [e-mail]

Examples

data(treecom_example)
head(treecom_example)
treecom_spastr<-spastr(X_df=treecom_example,
              xrange=c(0,100),yrange=c(0,100),
              xwidth=10,ywidth=10,
              buf.xwid =10, buf.ywid = 10,
              smark=c("spe","storey","dbh","cw","x","y"))
treecom_spastr

Zongzheng/forestSAS documentation built on July 13, 2024, 8:12 p.m.