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dbstats (version 2.0.2)

GtoD2: Distance conversion: dist to D2

Description

Converts Gram class object into D2 class object

Usage

GtoD2(G)

Value

An object of class D2 containing the squared distances matrix between individuals.

Arguments

G

Gram class object. Weighted centered inner products matrix of the squared distances matrix.

Author

Boj, Eva <evaboj@ub.edu>, Caballe, Adria <adria.caballe@upc.edu>, Delicado, Pedro <pedro.delicado@upc.edu> and Fortiana, Josep <fortiana@ub.edu>

See Also

D2toG
disttoD2
D2toDist

Examples

Run this code

X <- matrix(rnorm(100*3),nrow=100)
D2 <- as.matrix(dist(X)^2)
class(D2) <- "D2"
G <- D2toG(D2,weights=NULL)
class(G) <- "Gram"
D22 <- GtoD2(G)


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