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Cross-product of large sparse matrices

Source: R/utils.R
crossprod.Rd

Compute the (transposed) cross-product of large sparse matrices using the same infrastructure as simil() and dist().

Usage

crossprod(x, y = NULL, min_prod = NULL, digits = 14)

tcrossprod(x, y = NULL, min_prod = NULL, digits = 14)

Arguments

x

a base::matrix or Matrix::Matrix object. Dense matrices are covered to the Matrix::CsparseMatrix internally.

y

if a base::matrix or Matrix::Matrix object is provided, proximity between documents or features in x and y is computed.

min_prod

the minimum product to be recorded.

digits

determines rounding of small values towards zero. Use primarily to correct floating point errors. Rounding is performed in C++ in a similar way as base::zapsmall.