rTensor
Tools for Tensor Analysis and Decomposition
A set of tools for creation, manipulation, and modeling of tensors with arbitrary number of modes. A tensor in the context of data analysis is a multidimensional array. rTensor does this by providing a S4 class 'Tensor' that wraps around the base 'array' class. rTensor provides common tensor operations as methods, including matrix unfolding, summing/averaging across modes, calculating the Frobenius norm, and taking the inner product between two tensors. Familiar array operations are overloaded, such as index subsetting via '[' and element-wise operations. rTensor also implements various tensor decomposition, including CP, GLRAM, MPCA, PVD, and Tucker. For tensors with 3 modes, rTensor also implements transpose, t-product, and t-SVD, as defined in Kilmer et al. (2013). Some auxiliary functions include the Khatri-Rao product, Kronecker product, and the Hamadard product for a list of matrices.
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Description file content
- Package
- rTensor
- Type
- Package
- Title
- Tools for Tensor Analysis and Decomposition
- Version
- 1.4
- Author
- James Li and Jacob Bien and Martin Wells
- Maintainer
- James Li
- Description
- A set of tools for creation, manipulation, and modeling of tensors with arbitrary number of modes. A tensor in the context of data analysis is a multidimensional array. rTensor does this by providing a S4 class 'Tensor' that wraps around the base 'array' class. rTensor provides common tensor operations as methods, including matrix unfolding, summing/averaging across modes, calculating the Frobenius norm, and taking the inner product between two tensors. Familiar array operations are overloaded, such as index subsetting via '[' and element-wise operations. rTensor also implements various tensor decomposition, including CP, GLRAM, MPCA, PVD, and Tucker. For tensors with 3 modes, rTensor also implements transpose, t-product, and t-SVD, as defined in Kilmer et al. (2013). Some auxiliary functions include the Khatri-Rao product, Kronecker product, and the Hamadard product for a list of matrices.
- License
- GPL (>= 2)
- Imports
- methods
- Depends
- R (>= 2.10.0)
- LazyData
- true
- Date
- 2018-12-03
- URL
- Packaged
- 2018-12-04 02:00:28 UTC; jamesyili
- RoxygenNote
- 6.1.1
- NeedsCompilation
- no
- Repository
- CRAN
- Date/Publication
- 2018-12-04 10:20:09 UTC
install.packages('rTensor')
1.4
5 days ago
http://jamesyili.github.io/rTensor
James Li
GPL (>= 2)
Depends on
R (>= 2.10.0)