dot-column_grad: Per-column Subgradient for AxisAtoms (private)
In CVXR: Disciplined Convex Optimization
.column_grad R Documentation
Per-column Subgradient for AxisAtoms (private)
Description
R counterpart of CVXPY's AxisAtom._column_grad(self, value).
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
.grad(AxisAtom), which walks the input by fibers and assembles
the full Jacobian.
Usage
.column_grad(x, value, ...)
Arguments
x
An axis-atom expression.
value
A numeric vector (the fiber).
...
Reserved for future use; method dispatch ignores it.
Value
A numeric vector of the same length, or NULL if the
gradient is undefined for this fiber.
CVXR documentation built on Aug. 24, 2026, 9:10 a.m.
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| .column_grad | R Documentation |
Per-column Subgradient for AxisAtoms (private)
Description
R counterpart of CVXPY's AxisAtom._column_grad(self, value).
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
.grad(AxisAtom), which walks the input by fibers and assembles
the full Jacobian.
Usage
.column_grad(x, value, ...)
Arguments
x |
An axis-atom expression. |
value |
A numeric vector (the fiber). |
... |
Reserved for future use; method dispatch ignores it. |
Value
A numeric vector of the same length, or NULL if the
gradient is undefined for this fiber.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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