FixedExperiment¶
(Source code, png, hires.png, pdf)

class
FixedExperiment
(*args)¶ Fixed experiment.
 Available constructors:
FixedExperiment(aSample)
FixedExperiment(aSample, weights)
Parameters: aSample : 2d sequence of float
Sample that already exists.
weights : sequence of float
Weights of each point of aSample.
See also
Notes
FixedExperiment is a deterministic weighted design of experiments. It enables to take into account a random sample which has been obtained outside the OpenTURNS study or at another step of the OpenTURNS study. The
generate()
method always gives the same sample, aSample, if it is recalled. When not specified, the weights associated to the points are all equal to . Then the sample aSample is considered as generated from the limit distribution . ThesetDistribution()
method has no side effect, as the distribution is fixed by the initial sample.Examples
>>> import openturns as ot >>> ot.RandomGenerator.SetSeed(0) >>> sample = [[i,i+1] for i in range(5)] >>> myPlane = ot.FixedExperiment(sample) >>> print(myPlane.generate()) 0 : [ 0 1 ] 1 : [ 1 2 ] 2 : [ 2 3 ] 3 : [ 3 4 ] 4 : [ 4 5 ]
Methods
generate
()Generate points according to the type of the experiment. generateWithWeights
()Generate points and their associated weight according to the type of the experiment. getClassName
()Accessor to the object’s name. getDistribution
()Accessor to the distribution. getId
()Accessor to the object’s id. getName
()Accessor to the object’s name. getShadowedId
()Accessor to the object’s shadowed id. getSize
()Accessor to the size of the generated sample. getVisibility
()Accessor to the object’s visibility state. hasName
()Test if the object is named. hasUniformWeights
()Ask whether the experiment has uniform weights. hasVisibleName
()Test if the object has a distinguishable name. setDistribution
(distribution)Accessor to the distribution. setName
(name)Accessor to the object’s name. setShadowedId
(id)Accessor to the object’s shadowed id. setSize
(size)Accessor to the size of the generated sample. setVisibility
(visible)Accessor to the object’s visibility state. 
__init__
(*args)¶ x.__init__(…) initializes x; see help(type(x)) for signature

generate
()¶ Generate points according to the type of the experiment.
Returns: sample :
Sample
Points which constitute the design of experiments with . The sampling method is defined by the nature of the weighted experiment.
Examples
>>> import openturns as ot >>> ot.RandomGenerator.SetSeed(0) >>> myExperiment = ot.MonteCarloExperiment(ot.Normal(2), 5) >>> sample = myExperiment.generate() >>> print(sample) [ X0 X1 ] 0 : [ 0.608202 1.26617 ] 1 : [ 0.438266 1.20548 ] 2 : [ 2.18139 0.350042 ] 3 : [ 0.355007 1.43725 ] 4 : [ 0.810668 0.793156 ]

generateWithWeights
()¶ Generate points and their associated weight according to the type of the experiment.
Returns: sample :
Sample
The points which constitute the design of experiments. The sampling method is defined by the nature of the experiment.
weights :
Point
of sizeWeights associated with the points. By default, all the weights are equal to .
Examples
>>> import openturns as ot >>> ot.RandomGenerator.SetSeed(0) >>> myExperiment = ot.MonteCarloExperiment(ot.Normal(2), 5) >>> sample, weights = myExperiment.generateWithWeights() >>> print(sample) [ X0 X1 ] 0 : [ 0.608202 1.26617 ] 1 : [ 0.438266 1.20548 ] 2 : [ 2.18139 0.350042 ] 3 : [ 0.355007 1.43725 ] 4 : [ 0.810668 0.793156 ] >>> print(weights) [0.2,0.2,0.2,0.2,0.2]

getClassName
()¶ Accessor to the object’s name.
Returns: class_name : str
The object class name (object.__class__.__name__).

getDistribution
()¶ Accessor to the distribution.
Returns: distribution :
Distribution
Distribution used to generate the set of input data.

getId
()¶ Accessor to the object’s id.
Returns: id : int
Internal unique identifier.

getName
()¶ Accessor to the object’s name.
Returns: name : str
The name of the object.

getShadowedId
()¶ Accessor to the object’s shadowed id.
Returns: id : int
Internal unique identifier.

getSize
()¶ Accessor to the size of the generated sample.
Returns: size : positive int
Number of points constituting the design of experiments.

getVisibility
()¶ Accessor to the object’s visibility state.
Returns: visible : bool
Visibility flag.

hasName
()¶ Test if the object is named.
Returns: hasName : bool
True if the name is not empty.

hasUniformWeights
()¶ Ask whether the experiment has uniform weights.
Returns: hasUniformWeights : bool
Whether the experiment has uniform weights.

hasVisibleName
()¶ Test if the object has a distinguishable name.
Returns: hasVisibleName : bool
True if the name is not empty and not the default one.

setDistribution
(distribution)¶ Accessor to the distribution.
Parameters: distribution :
Distribution
Distribution used to generate the set of input data.

setName
(name)¶ Accessor to the object’s name.
Parameters: name : str
The name of the object.

setShadowedId
(id)¶ Accessor to the object’s shadowed id.
Parameters: id : int
Internal unique identifier.

setSize
(size)¶ Accessor to the size of the generated sample.
Parameters: size : positive int
Number of points constituting the design of experiments.

setVisibility
(visible)¶ Accessor to the object’s visibility state.
Parameters: visible : bool
Visibility flag.