AdjSigVarExp

Adjusts the proportion of total variation attributable to each signal component to predetermined values

Joint and Individual Variation Explained (JIVE) is a method for decomposing multiple datasets obtained on the same subjects into
shared structure, structure unique to each dataset, and noise. The two most common implementations are R.JIVE, an iterative
approach, and AJIVE, which uses principal angle analysis. JIVE estimates subspaces but interpreting these subspaces can be
challenging with AJIVE or R.JIVE. We expand upon insights into AJIVE as a canonical correlation analysis (CCA) of principal component
scores. This reformulation, which we call CJIVE, 1) provides an ordering of joint components by the degree of correlation between
corresponding canonical variables; 2) uses a computationally efficient permutation test for the number of joint components, which
provides a p-value for each component; and 3) can be used to predict subject scores for out-of-sample observations.
Please cite the following article when utilizing this package:
Murden, R., Zhang, Z., Guo, Y., & Risk, B. (2022) <doi:10.3389/fnins.2022.969510>.

Raphiel Murden

CJIVE

Canonical Joint and Individual Variation Explained (CJIVE)

Benjamin Risk

AdjSigVarExp function

<dl><dt>J</dt>
<dd>joint signal matrix of size n-by-p</dd>
<dt>I</dt>
<dd>individual signal matrix of size n-by-p</dd>
<dt>N</dt>
<dd>noise/error matrix of size n-by-p</dd>
<dt>JntVarEx</dt>
<dd>desired proportion of total variation explained by the joint signal</dd>
<dt>IndVarEx</dt>
<dd>desired proportion of total variation explained by the individual signal</dd></dl>

Arguments

Adjust Signal Variation Explained — AdjSigVarExp

<dl>

<dt>J</dt>
<dd>joint signal matrix of size n-by-p</dd>


<dt>I</dt>
<dd>individual signal matrix of size n-by-p</dd>


<dt>N</dt>
<dd>noise/error matrix of size n-by-p</dd>


<dt>JntVarEx</dt>
<dd>desired proportion of total variation explained by the joint signal</dd>


<dt>IndVarEx</dt>
<dd>desired proportion of total variation explained by the individual signal</dd>

</dl>

AdjSigVarExp: Adjust Signal Variation Explained

Description

Usage

Value

Arguments