MeasureFactory

class otrobopt.MeasureFactory(*args)

Discretize a measure function.

It consists in replacing the distribution \cD of the measure by a discrete approximation.

\cD \rightarrow \sum_{i=1}^N \omega_i \delta_{\theta_i}

Where \delta_{\theta_i} is the Dirac measure at \theta_i.

Parameters:
experimentopenturns.WeightedExperiment

Parameters design of experiment

Examples

First define a measure:

>>> import openturns as ot
>>> import otrobopt
>>> thetaDist = ot.Normal(2.0, 0.1)
>>> f_base = ot.SymbolicFunction(['x', 'theta'], ['x*theta'])
>>> f = ot.ParametricFunction(f_base, [1], [1.0])
>>> measure = otrobopt.MeanMeasure(f, thetaDist)

Then discretize it:

>>> N = 10
>>> experiment = ot.LHSExperiment(N)
>>> factory = otrobopt.MeasureFactory(experiment)
>>> discretizedMeasure = factory.build(measure)

Discretize several measures at once:

>>> coll = [otrobopt.MeanMeasure(f, thetaDist),
...         otrobopt.VarianceMeasure(f, thetaDist)]
>>> discretizedMeasures = factory.buildCollection(coll)

Methods

build(measure)

Discretize a measure.

buildCollection(collection)

Discretize several measures.

getClassName()

Accessor to the object's name.

getId()

Accessor to the object's id.

getName()

Accessor to the object's name.

getShadowedId()

Accessor to the object's shadowed id.

getVisibility()

Accessor to the object's visibility state.

hasName()

Test if the object is named.

hasVisibleName()

Test if the object has a distinguishable name.

setName(name)

Accessor to the object's name.

setShadowedId(id)

Accessor to the object's shadowed id.

setVisibility(visible)

Accessor to the object's visibility state.
__init__(*args)
build(measure)

Discretize a measure.

Parameters:
measureMeasureEvaluation

Measure

Returns:
measureMeasureEvaluation

Discretized measure

buildCollection(collection)

Discretize several measures.

Parameters:
collectionsequence of MeasureEvaluation

The measures to discretize.

Returns:
measuressequence of MeasureEvaluation

Discretized measures

getClassName()

Accessor to the object’s name.

Returns:
class_namestr

The object class name (object.__class__.__name__).

getId()

Accessor to the object’s id.

Returns:
idint

Internal unique identifier.

getName()

Accessor to the object’s name.

Returns:
namestr

The name of the object.

getShadowedId()

Accessor to the object’s shadowed id.

Returns:
idint

Internal unique identifier.

getVisibility()

Accessor to the object’s visibility state.

Returns:
visiblebool

Visibility flag.

hasName()

Test if the object is named.

Returns:
hasNamebool

True if the name is not empty.

hasVisibleName()

Test if the object has a distinguishable name.

Returns:
hasVisibleNamebool

True if the name is not empty and not the default one.

setName(name)

Accessor to the object’s name.

Parameters:
namestr

The name of the object.

setShadowedId(id)

Accessor to the object’s shadowed id.

Parameters:
idint

Internal unique identifier.

setVisibility(visible)

Accessor to the object’s visibility state.

Parameters:
visiblebool

Visibility flag.