analogue (version 0.17-7)

dissimilarities: Extract dissimilarity coefficients from models

Description

Extracts a vector of dissimilarity coefficients from an object for further analysis.

Usage

dissimilarities(object, ...)
dissim(object, ...)
# S3 method for analog
dissimilarities(object, which = c("train", "analogs"),
                 ...)
# S3 method for mat
dissimilarities(object, ...)

Value

A vector of dissimilarities.

Arguments

object

an R object from which the dissimilarity values are to be extracted. Currently only for objects of class "analog".

which

character; which set of dissimilarities should be extracted. One of "train" or "analogs".

...

arguments passed to other methods.

Author

Gavin L. Simpson

Details

The function can be called using the much shorter name "dissim".

See Also

analog, plot.dissimilarities

Examples

## Imbrie and Kipp example
## load the example data
data(ImbrieKipp)
data(SumSST)
data(V12.122)

## merge training and test set on columns
dat <- join(ImbrieKipp, V12.122, verbose = TRUE)

## extract the merged data sets and convert to proportions
ImbrieKipp <- dat[[1]] / 100
V12.122 <- dat[[2]] / 100

## analog matching between SWAPImbrie & Kipp and V12.122 core
ik.analog <- analog(ImbrieKipp, V12.122, method = "chord")
ik.analog
summary(ik.analog)

## compare training set dissimilarities with normals
## and derive cut-offs
ik.dij <- dissim(ik.analog)
plot(ik.dij)