View source: R/metrics.energy.R
energy | R Documentation |
Compute Energy distance between two dataset or SparseHist X and Y
energy(X, Y, p = 2, metric = "euclidean")
X |
[matrix or SparseHist] If matrix, dim = ( nrow = n_samples, ncol = n_features) |
Y |
[matrix or SparseHist] If matrix, dim = ( nrow = n_samples, ncol = n_features) |
p |
[float] power of energy distance, default is 2. |
metric |
[str or function] metric for pairwise distance, default is "euclidean", see SBCK::pairwise_distances |
[float] value of distance
X = base::cbind( stats::rnorm(2000) , stats::rnorm(2000) )
Y = base::cbind( stats::rnorm(2000,mean=10) , stats::rnorm(2000) )
bw = base::c(0.1,0.1)
muX = SBCK::SparseHist( X , bw )
muY = SBCK::SparseHist( Y , bw )
## The four are equals
w2 = SBCK::energy(X,Y)
w2 = SBCK::energy(muX,Y)
w2 = SBCK::energy(X,muY)
w2 = SBCK::energy(muX,muY)
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