matvec-methods: Tensor Matvec Unfolding

Description Usage Arguments Details Value References See Also Examples

Description

For 3-tensors only. Stacks the slices along the third mode. This is the prevalent unfolding for T-SVD and T-MULT based on block circulant matrices.

Usage

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matvec(tnsr)

## S4 method for signature 'Tensor'
matvec(tnsr)

Arguments

tnsr

the Tensor instance

Details

matvec(tnsr)

Value

matrix with prod([email protected][-m]) rows and [email protected][m] columns

References

M. Kilmer, K. Braman, N. Hao, and R. Hoover, "Third-order tensors as operators on matrices: a theoretical and computational framework with applications in imaging". SIAM Journal on Matrix Analysis and Applications 2013.

See Also

k_unfold-methods and unfold-methods

Examples

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tnsr <- rand_tensor(c(2,3,4))
matT1<- matvec(tnsr)

jamesyili/rTensor documentation built on May 17, 2017, 9:44 a.m.