transform_xdt_to_xss

Transforms a given <code>data.table()</code> to a list with transformed x values.
If no trafo is defined it will just convert the <code>data.table()</code> to a list.
Mainly for internal usage.

internal

Features highly configurable search spaces via the 'paradox'
package and optimizes every user-defined objective function. The
package includes several optimization algorithms e.g. Random Search,
Iterated Racing, Bayesian Optimization (in 'mlr3mbo') and Hyperband
(in 'mlr3hyperband'). bbotk is the base package of 'mlr3tuning',
'mlr3fselect' and 'miesmuschel'.

Marc Becker

bbotk

Black-Box Optimization Toolkit

Jakob Richter

Michel Lang

Bernd Bischl

Martin Binder

Olaf Mersmann

transform_xdt_to_xss function

<dl><dt>xdt</dt>
<dd>(<code><a href="https://rdatatable.gitlab.io/data.table/reference/data.table.html">data.table::data.table()</a></code>) 
Set of untransformed points / points from the search space.
One point per row, e.g. <code>data.table(x1 = c(1, 3), x2 = c(2, 4))</code>.
Column names have to match ids of the <code>search_space</code>.
However, <code>xdt</code> can contain additional columns.</dd>
<dt>search_space</dt>
<dd>(paradox::ParamSet) 
Specifies the search space for the Optimizer. The paradox::ParamSet
describes either a subset of the <code>domain</code> of the Objective or it describes
a set of parameters together with a <code>trafo</code> function that transforms values
from the search space to values of the domain. Depending on the context, this
value defaults to the domain of the objective.</dd></dl>

Arguments

Calculates the transformed x-values — transform_xdt_to_xss

<dl>

<dt>xdt</dt>
<dd>(<code><a href='https://rdatatable.gitlab.io/data.table/reference/data.table.html'>data.table::data.table()</a></code>) 
Set of untransformed points / points from the search space.
One point per row, e.g. <code>data.table(x1 = c(1, 3), x2 = c(2, 4))</code>.
Column names have to match ids of the <code>search_space</code>.
However, <code>xdt</code> can contain additional columns.</dd>


<dt>search_space</dt>
<dd>(paradox::ParamSet) 
Specifies the search space for the Optimizer. The paradox::ParamSet
describes either a subset of the <code>domain</code> of the Objective or it describes
a set of parameters together with a <code>trafo</code> function that transforms values
from the search space to values of the domain. Depending on the context, this
value defaults to the domain of the objective.</dd>

</dl>

transform_xdt_to_xss: Calculates the transformed x-values

Description

Usage

Value

Arguments