ProdEntries-class function

The ProdEntries class.

The product of the entries in an expression. class

ProdEntries(..., axis = NA_real_, keepdims = FALSE)

## S4 method for signature 'ProdEntries'
to_numeric(object, values)

## S4 method for signature 'ProdEntries'
sign_from_args(object)

## S4 method for signature 'ProdEntries'
is_atom_convex(object)

## S4 method for signature 'ProdEntries'
is_atom_concave(object)

## S4 method for signature 'ProdEntries'
is_atom_log_log_convex(object)

## S4 method for signature 'ProdEntries'
is_atom_log_log_concave(object)

## S4 method for signature 'ProdEntries'
is_incr(object, idx)

## S4 method for signature 'ProdEntries'
is_decr(object, idx)

## S4 method for signature 'ProdEntries'
.column_grad(object, value)

## S4 method for signature 'ProdEntries'
.grad(object, values)

Arguments

• ...: Expression objects, vectors, or matrices.
• axis: (Optional) The dimension across which to apply the function: 1 indicates rows, 2 indicates columns, and NA indicates rows and columns. The default is NA.
• keepdims: (Optional) Should dimensions be maintained when applying the atom along an axis? If FALSE, result will be collapsed into an $n x 1$ column vector. The default is FALSE.
• object: A ProdEntries object.
• values: A list of numeric values for the arguments
• idx: An index into the atom.
• value: A numeric value.

Methods (by generic)

• to_numeric(ProdEntries): The product of all the entries.
• sign_from_args(ProdEntries): Returns the sign (is positive, is negative) of the atom.
• is_atom_convex(ProdEntries): Is the atom convex?
• is_atom_concave(ProdEntries): Is the atom concave?
• is_atom_log_log_convex(ProdEntries): Is the atom log-log convex?
• is_atom_log_log_concave(ProdEntries): is the atom log-log concave?
• is_incr(ProdEntries): Is the atom weakly increasing in the argument idx?
• is_decr(ProdEntries): Is the atom weakly decreasing in the argument idx?
• .column_grad(ProdEntries): Gives the (sub/super)gradient of the atom w.r.t. each column variable
• .grad(ProdEntries): Gives the (sub/super)gradient of the atom w.r.t. each variable

Slots

• expr: An Expression representing a vector or matrix.
• axis: (Optional) The dimension across which to apply the function: 1 indicates rows, 2 indicates columns, and NA indicates rows and columns. The default is NA.