is_sparse: Matrix Sparsity Check
In antshi/CovEstim: (High-dimensional) Covariance Estimation

Performs a sparsity check on a data matrix.

1	is_sparse(mat)

mat

an nxp data matrix.

a logical, indicating whether the matrix is sparse (TRUE) or not (FALSE).

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data(sp200)
sp_rets <- sp200[,-1]
sparsity_logic <- is_sparse(sp_rets)

antshi/CovEstim documentation built on Nov. 13, 2020, 2:25 p.m.

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