.column_grad

R counterpart of CVXPY's <code>AxisAtom._column_grad(self, value)</code>.
Receives a single column (a 1-D fiber) of the input and returns the
gradient of the atom's reduction over that column. Used by
<code>.grad(AxisAtom)</code>, which walks the input by fibers and assembles
the full Jacobian.

internal

An object-oriented modeling language for disciplined
convex programming (DCP) as described in Fu, Narasimhan, and Boyd
(2020, <doi:10.18637/jss.v094.i14>). It allows the user to
formulate convex optimization problems in a natural way following
mathematical convention and DCP rules. The system analyzes the
problem, verifies its convexity, converts it into a canonical
form, and hands it off to an appropriate solver to obtain the
solution. This version uses the S7 object system for improved
performance and maintainability.

Anqi Fu

CVXR

Disciplined Convex Optimization

Balasubramanian Narasimhan

Steven Diamond

John Miller

Stephen Boyd

.column_grad function

<dl><dt>x</dt>
<dd>An axis-atom expression.</dd>
<dt>value</dt>
<dd>A numeric vector (the fiber).</dd>
<dt>...</dt>
<dd>Reserved for future use; method dispatch ignores it.</dd></dl>

Arguments

Per-column Subgradient for AxisAtoms (private) — .column_grad

<dl>

<dt>x</dt>
<dd>An axis-atom expression.</dd>


<dt>value</dt>
<dd>A numeric vector (the fiber).</dd>


<dt>...</dt>
<dd>Reserved for future use; method dispatch ignores it.</dd>

</dl>

.column_grad: Per-column Subgradient for AxisAtoms (private)

Description

Usage

Value

Arguments