good1 {nomclust} | R Documentation |
A function for calculation of a proximity (dissimilarity) matrix based on the G1 similarity measure.
good1(data)
data |
A data.frame or a matrix with cases in rows and variables in colums. |
The Goodall 1 similarity measure was presented in (Boriah et al., 2008). It is a simple modification of the original Goodall measure (Goodall, 1966). The measure assigns higher weights to infrequent matches.
The function returns an object of class "dist".
Zdenek Sulc.
Contact: zdenek.sulc@vse.cz
Boriah S., Chandola V., Kumar V. (2008). Similarity measures for categorical data: A comparative evaluation.
In: Proceedings of the 8th SIAM International Conference on Data Mining, SIAM, p. 243-254.
Goodall V.D. (1966). A new similarity index based on probability. Biometrics, 22(4), p. 882.
eskin
,
good2
,
good3
,
good4
,
iof
,
lin
,
lin1
,
of
,
sm
,
ve
,
vm
.
# sample data data(data20) # dissimilarity matrix calculation prox.good1 <- good1(data20)