lle: find_coords – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

find_coords

Calculate embedded data.

Description

Calculates the embedded data of dimension m using the weight matrix.

Usage

find_coords(wgts, nns, N, n, m)

Arguments

`wgts`	weight matrix calculated by `find_weights`.
`nns`	matrix of neighbours calculated by `find_nn_k` or `find_nn_eps`.
`N`	number of samples.
`n`	dimension of the original data.
`m`	intrinsic dimension of the data.

Value

`Y`	matrix containing the embedded data.

Examples

data( lle_scurve_data )
	X <- lle_scurve_data
	nns <- find_nn_k(X,5)
	wgts <- find_weights(nns,X,2)
	Y <- find_coords( wgts$wgts, nns, dim(X)[1], 3, 2 )

lle

Locally linear embedding

v1.1

GPL-3

Authors

Holger Diedrich, Dr. Markus Abel (Department of Physics, University Potsdam)

Initial release

2012-03-21