common.interval {dplR} | R Documentation |
This function finds the common interval on a set of tree-ring widths
such as that produced by read.rwl
.
common.interval(rwl, type=c("series", "years", "both"),
make.plot=TRUE)
rwl |
a |
type |
a |
make.plot |
a |
This trims an rwl
object to a common interval that maximizes
the number of series (type="series"
), the number of years
(type="years"
), or a compromise between the two
(type="both"
). A modified seg.plot
can be drawn
as well.
A data.frame
with colnames(x)
and
rownames(x)
.
Filipe Campelo, Andy Bunn and Mikko Korpela
library(utils)
data(co021)
co021.s <- common.interval(co021, type="series", make.plot=TRUE)
co021.y <- common.interval(co021, type="years", make.plot=TRUE)
co021.b <- common.interval(co021, type="both", make.plot=TRUE)
dim(co021)
dim.s <- dim(co021.s)
dim.s # the highest number of series
prod(dim.s) # (33 series x 288 years = 9504)
dim.y <- dim(co021.y)
dim.y # the highest number of years
prod(dim.y) # (27 series x 458 years = 12366)
dim.b <- dim(co021.b)
dim.b # compromise solution
prod(dim.b) # (28 series x 435 years = 12180)