Construct an unfolded_sptensor from a sparse matrix, mode, and dimensions of original tensor.

unfolded_sptensor(mat, mode, tensor_dims)

# S4 method for Matrix,numeric,numeric
unfolded_sptensor(mat, mode,
  tensor_dims)

Arguments

mat

sparse matrix representing unfolded tensor

mode

dimension to unfold tensor along

tensor_dims

original dimensions of tensor (useful for re-folding)

See also

unfolded_sptensor-class for class documentation.