sammon: Wrapper to 'sammon' for S3 class

Description Usage Arguments Value Examples

View source: R/extras.R

Description

Wrapper to sammon for S3 class

Usage

1
sammon(d, y = NULL, k = 2, ...)

Arguments

d

a distance structure such as that returned by 'dist' or a full symmetric matrix. Data are assumed to be dissimilarities or relative distances, but must be positive except for self-distance. This can contain missing values.

y

An initial configuration. If NULL, 'cmdscale' is used to provide the classical solution. (If there are missing values in 'd', an initial configuration must be provided.) This must not have duplicates.

k

The dimension of the configuration

...

Additional parameters passed to sammon, see sammon

Value

See sammon. This wrapper only adds an extra slot to the list with the call, adds column labels to the $points and assigns S3 classes 'sammon', 'cmdscale'. It also adds a slot obsdiss with normalized dissimilarities.

Examples

1
2
dis<-as.matrix(smacof::kinshipdelta)
res<-sammon(dis)

cops documentation built on March 24, 2021, 1:06 a.m.