laplacian_eigenmap

Synopsis

Performs the laplacian eigenmap computations (source code).

Usage

[gradients, lambdas] = laplacian_eigenmap(data, n_components)

• data: the data matrix to perform the laplacian eigenmapping on.
• n_components: the number of components to return.
• gradients: the output gradients.
• mapping: structure containing the output gradients and lambdas.

Description

Performs the laplacian eigenmap procedure. Original implemented in the MATLAB Toolbox for Dimensionality Reduction by Laurens van der Maaten. Modified for use in the BrainSpace toolbox.