Cosine Cross-Distances

Description

Compute cosine cross-distances between the rows of matrices.

Usage

 1 skmeans_xdist(x, y = NULL) 

Arguments

 x A numeric data matrix. Can be a dense matrix, simple triplet matrix (package slam), or a dgTMatrix (package Matrix). y NULL (default), or as for x. The default is equivalent to taking y as x (but more efficient).

Value

A dense matrix d with entry d_{ij} = 1 - \cos(x_i, y_j) the cosine distance between the i-th row x_i of x and the j-th row y_j of y.

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