plotBoundary: Plot boundary line.

In TRADER: Tree Ring Analysis of Disturbance Events in R

Plot boundary line.

Description

Plot boundary line.

Usage

plotBoundary(boundaries, x, y, boundary, rsq = NULL, 
  criteria = 0.2, criteria2 = 0.5, store = TRUE, storedev = pdf,
  prefix = NULL)

Arguments

boundaries	Data frame with segments (x-axis) and tops(y-axis).
x	x coordinates of all priors.
y	y coordinates of all priors.
boundary	Boundary line function of one argument, eg. boundary=function(x) {5.0067*exp(-0.664*x)}
rsq	R square of the fit.
criteria	Threshold for detection of moderate release
criteria2	Threshold for detection of major release.
store	If to save results on files.
storedev	Format for saving the graphical outputs, eg. pdf or jpeg.
prefix	Prefix of saved files.

Details

Boundary-line method scales the percent growth change of Nowacki & Abrams (1997) according to growth rate prior to disturbance. In their example, Black & Abrams (2003) defined moderate and major releases as those falling within 20-49.9%, and 50-100% of the boundary line, respectively. Advantage of the boundary-line is standardization, which takes into account the relationships among tree age, size, and canopy class determining radial growth rate (Black et al. 2004). On the downside, Black et al. (2009) suggest approximately 50000 ring width measurements is necessary for boundary line determination for a given species (Black et al. 2009).

Value

Plot boundary line and priors.

Note

Check the reference.

Author(s)

Pavel Fibich <[e-mail]>, Jan Altman <[e-mail]>, Tuomas Aakala <[e-mail]>, Jiri Dolezal <[e-mail]>

References

Altman J, Fibich P, Dolezal J & Aakala T (2014) TRADER: a package for Tree Ring Analysis of Disturbance Events in R. Dendrochonologia 32: 107-112.

See Also

boundaryGet, boundaryFit

Examples

data(relData)
bo<-boundaryGet(relData1)
bofit<-boundaryFit(bo$bo,bo$x,bo$y)

plotBoundary(bo$bo,bo$x,bo$y,boundary=bofit$fun,rsq=bofit$rsq)

TRADER documentation built on May 29, 2024, 2:35 a.m.