dcor._dcor_internals

Internal functions for distance covariance and correlation.

The functions in this module are used for performing computations related with distance covariance and correlation.

Functions

double_centered(a, *[, out])	Return a copy of the matrix \(a\) which is double centered.
mean_product(a, b)	Average of the elements for an element-wise product of two matrices.
u_centered(a, *[, out])	Return a copy of the matrix \(a\) which is \(U\)-centered.
u_complementary_projection(a)	Return the orthogonal projection function over \(a^{\perp}\).
u_product(a, b)	Inner product in the Hilbert space of \(U\)-centered distance matrices.
u_projection(a)	Return the orthogonal projection function over \(a\).

Classes

Centering()	Callback protocol for centering method.
MatrixCentered()	Callback protocol for centering method.