pca.c File Reference

#include <neatogen/matrix_ops.h>
#include <neatogen/pca.h>
#include <neatogen/closest.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <util/alloc.h>

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Functions
void	PCA_alloc (DistType **coords, int dim, int n, double **new_coords, int new_dim)
bool	iterativePCA_1D (double **coords, int dim, int n, double *new_direction)

Variables
static int	num_pairs = 4

Function Documentation

iterativePCA_1D()

bool iterativePCA_1D	(	double **	coords,
		int	dim,
		int	n,
		double *	new_direction
	)

Definition at line 72 of file pca.c.

References closest_pairs2graph(), dim, eval(), free(), mult_dense_mat_d(), mult_sparse_dense_mat_transpose(), NULL, num_pairs, and power_iteration().

Referenced by sparse_stress_subspace_majorization_kD().

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PCA_alloc()

void PCA_alloc	(	DistType **	coords,
		int	dim,
		int	n,
		double **	new_coords,
		int	new_dim
	)

Definition at line 23 of file pca.c.

References dim, free(), gv_calloc(), and power_iteration().

Referenced by sparse_stress_subspace_majorization_kD().

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Variable Documentation

num_pairs

int num_pairs = 4

static

Definition at line 20 of file pca.c.

Referenced by closest_pairs2graph(), find_closest_pairs(), and iterativePCA_1D().