The function <code>krp(A,B)</code> returns the Khatri-Rao product of two matrices <code>A</code> and <code>B</code>, of
 dimensions I x K and J x K respectively. The result is an IJ x K matrix formed by the matching
 column-wise Kronecker products, i.e. the k-th column of the Khatri-Rao product is
 defined as <code>kronecker(A[, k], B[, k])</code>.

Provides methods for multiway data analysis by means of Parafac
and Tucker 3 models. Robust versions (Engelen and Hubert (2011) <doi:10.1016/j.aca.2011.04.043>) and versions
for compositional data are also provided (Gallo (2015) <doi:10.1080/03610926.2013.798664>, Di Palma et al. (2018) <doi:10.1080/02664763.2017.1381669>).
Several optimization methods alternative to ALS are available
(Simonacci and Gallo (2019) <doi:10.1016/j.chemolab.2019.103822>, Simonacci and Gallo (2020) <doi:10.1007/s00500-019-04320-9>).

Valentin Todorov

rrcov3way

Robust Methods for Multiway Data Analysis, Applicable also for
Compositional Data

 Violetta Simonacci

 Maria Anna Di Palma

Michele Gallo

krp function

<dl><dt>A</dt>
<dd>Matrix of order I x K.</dd>
<dt>B</dt>
<dd>Matrix of order J x K.</dd></dl>

Arguments

Valentin Todorov, <a href="/link/valentin.todorov%40chello.at?package=rrcov3way&version=0.5-0" data-mini-rdoc="rrcov3way::valentin.todorov@chello.at">valentin.todorov@chello.at</a>

Author

The Khatri-Rao product of two matrices — krp

<dl>

<dt>A</dt>
<dd>Matrix of order I x K.</dd>


<dt>B</dt>
<dd>Matrix of order J x K.</dd>

</dl>

Valentin Todorov, <a href='mailto:valentin.todorov@chello.at'>valentin.todorov@chello.at</a>

krp: The Khatri-Rao product of two matrices

Description

Usage

Value

Arguments

Author

References

Examples