DRquality (version 0.2.1)

SpearmanError: Calculates the error of a projection with spearman's rank correlation coefficient.

Description

Calculates the error of a projection with spearman's rank correlation coefficient.

Value

rho rank correlation coefficient

Arguments

VectorOfInputDists(1:n2)

dissimilarities in Input Space between the n data points in vector form as produced by squareform(Dists(1:n,1:n))

VectorOfOutputDists(1:n2)

dissimilarities in Output Space between the n data points in vector form as produced by squareform(Dists(1:n,1:n))

Author

Florian Lerch

Examples

# \donttest{
if(requireNamespace("FCPS")){
data(Hepta,package="FCPS")
projection=cmdscale(dist(Hepta$Data), k=2)
SpearmanError(as.matrix(dist(Hepta$Data)),as.matrix(dist(projection)))
}
# }
# \dontshow{
n=100
Data=cbind(rnorm(100),rnorm(100,2,3))
SpearmanError(as.matrix(dist(Data)),cbind(runif(n),runif(n)))
# }