PythonPhysicalModel

class persalys.PythonPhysicalModel(*args)

Create a physical model defined by Python code.

Parameters

namestr

Name

inputssequence of Input

Input variables (optional)

outputssequence of Output

Output variables (optional)

codestr

Code string (optional)

Notes

The code string must contain a function named ‘_exec’ that takes float arguments and return a float or a sequence of floats.

Examples

>>> import openturns as ot
>>> import persalys

Create the model:

>>> R = persalys.Input('R', 0., ot.LogNormalMuSigma(300., 30., 0.).getDistribution(), 'Yield strength')
>>> F = persalys.Input('F', 0., ot.Normal(75000., 5000.), 'Traction load')
>>> G = persalys.Output('G', 'deviation')
>>> code = 'from math import pi\n\ndef _exec(R, F):\n    G = R-F/(pi*100.0)\n    return G\n'
>>> model = persalys.PythonPhysicalModel('myPhysicalModel', [R, F], [G], code)
>>> y = model.getFunction()([300.0,75000.0])

Attributes

thisown

The membership flag

Methods

addInput(input)	Add an input variable.
addOutput(output)	Add an output variable.
clearInputs()	Remove all the input variables.
clearOutputs()	Remove all the output variables.
getClassName()	Accessor to the object’s name.
getCode()	Code accessor.
getCopula()	Copula accessor.
getDistribution()	Distribution accessor.
getFunction(*args)	Accessor to the underlying function.
getId()	Accessor to the object’s id.
getInputByName(*args)	Input variable accessor.
getInputDimension()	Number of input variables accessor.
getInputNames()	Input variable names accessor.
getInputRandomVector()	Input random vector accessor.
getInputs()	Input variables accessor.
getMeshModel()	Mesh model accessor.
getName()	Accessor to the object’s name.
getOutputByName(*args)	Output variable accessor.
getOutputDimension()	Number of output variables accessor.
getOutputNames()	Output variable names accessor.
getOutputRandomVector(outputNames)	Output random vector accessor.
getOutputs()	Output variables accessor.
getPointToFieldFunction(*args)	Accessor to the underlying function.
getProcessNumber()	Number of concurrent processes.
getPythonScript()	Python script accessor.
getRestrictedFunction(*args)	Accessor to the function restricted to its stochastic inputs.
getRestrictedPointToFieldFunction(outputNames)	Accessor to the field function restricted to its stochastic inputs.
getSelectedOutputsNames()	Accessor to the selected outputs names.
getShadowedId()	Accessor to the object’s shadowed id.
getStochasticInputNames()	Accessor to the names of the stochastic input variables.
getVisibility()	Accessor to the object’s visibility state.
hasInputNamed(inputName)	Check if an input has the given name.
hasMesh()	Whether the model has a mesh.
hasName()	Test if the object is named.
hasOutputNamed(outputName)	Check if an output has the given name.
hasStochasticInputs()	Whether it contains stochastic variables.
hasVisibleName()	Test if the object has a distinguishable name.
isParallel()	Whether the evaluations of the model are parallelized.
isValid()	Whether it is valid.
removeInput(inputName)	Remove an input variable.
removeOutput(outputName)	Remove an output variable.
selectOutput(outputName, selected)	Select output.
setCode(code)	Code accessor.
setCopula(inputNames, copula)	Copula accessor.
setDistribution(inputName, distribution)	Input distribution accessor.
setDistributionParametersType(inputName, …)	Input distribution parameter type accessor.
setFiniteDifferenceStep(inputName, step)	Finite difference step accessor.
setInputDescription(inputName, description)	Input description accessor.
setInputName(inputName, newName)	Input variable name accessor.
setInputStochastic(inputName, stoch)	Whether the input variable is stochastic.
setInputValue(inputName, value)	Input variable value accessor.
setInputs(inputs)	Input variables accessor.
setMeshModel(meshModel)	Mesh model accessor.
setName(name)	Accessor to the object’s name.
setOutputDescription(outputName, description)	Output description accessor.
setOutputName(outputName, newName)	Output variable name accessor.
setOutputValue(outputName, value)	Output variable name accessor.
setOutputs(outputs)	Output variables accessor.
setParallel(flag)	Whether the evaluations of the model are parallelized.
setProcessNumber(processNumber)	Number of concurrent processes.
setShadowedId(id)	Accessor to the object’s shadowed id.
setVisibility(visible)	Accessor to the object’s visibility state.

getEvalTime
setEvalTime

__init__(*args)

Initialize self. See help(type(self)) for accurate signature.

addInput(input)

Add an input variable.

Parameters

inputInput

New variable

addOutput(output)

Add an output variable.

Parameters

outputOutput

New variable

clearInputs()

Remove all the input variables.

clearOutputs()

Remove all the output variables.

getClassName()

Accessor to the object’s name.

Returns

class_namestr

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

getCode()

Code accessor.

Returns

codestr

Code text

getCopula()

Copula accessor.

Parameters

copulaopenturns.Copula

The copula

getDistribution()

Distribution accessor.

Parameters

Distributionopenturns.ComposedDistribution

The composed distribution (marginals and dependence)

getFunction(*args)

Accessor to the underlying function.

Parameters

outputNamessequence of str

Names of the outputs to be evaluated (optional)

Returns

functionopenturns.Function

Function evaluating the outputs

getId()

Accessor to the object’s id.

Returns

idint

Internal unique identifier.

getInputByName(*args)

Input variable accessor.

Parameters

namestr

Variable name

Returns

inputInput

Input variable

getInputDimension()

Number of input variables accessor.

Returns

dimensionint

Number of input variables

getInputNames()

Input variable names accessor.

Returns

namesopenturns.Description

Input variable names

getInputRandomVector()

Input random vector accessor.

Returns

namesopenturns.RandomVector

Input random vector

getInputs()

Input variables accessor.

Returns

inputssequence of Input

Input variables

getMeshModel()

Mesh model accessor.

Returns

meshMeshModel

Mesh model

getName()

Accessor to the object’s name.

Returns

namestr

The name of the object.

getOutputByName(*args)

Output variable accessor.

Parameters

namestr

Variable name

Returns

inputOutput

Output variable

getOutputDimension()

Number of output variables accessor.

Returns

dimensionint

Number of output variables

getOutputNames()

Output variable names accessor.

Returns

namesopenturns.Description

Ouput variable names

getOutputRandomVector(outputNames)

Output random vector accessor.

Returns

namesopenturns.RandomVector

Output random vector

getOutputs()

Output variables accessor.

Returns

outputssequence of Output

Output variables

getPointToFieldFunction(*args)

Accessor to the underlying function.

Parameters

outputNamessequence of str

Names of the outputs to be evaluated (optional)

Returns

functionopenturns.PointToFieldFunction

Function evaluating the outputs along the mesh nodes

getProcessNumber()

Number of concurrent processes.

Returns

process_numberint

Maximum number of processes

getPythonScript()

Python script accessor.

Returns

scriptstr

Python script to replay the model

getRestrictedFunction(*args)

Accessor to the function restricted to its stochastic inputs.

Parameters

outputNamessequence of str

Output variables (optional)

Returns

restrictedopenturns.Function

Stochastic function

getRestrictedPointToFieldFunction(outputNames)

Accessor to the field function restricted to its stochastic inputs.

Parameters

outputNamessequence of str

Output variables (optional)

Returns

restrictedopenturns.PointToFieldFunction

Stochastic field function (for model with mesh)

getSelectedOutputsNames()

Accessor to the selected outputs names.

Returns

namesopenturns.Description

Selected outputs names

getShadowedId()

Accessor to the object’s shadowed id.

Returns

idint

Internal unique identifier.

getStochasticInputNames()

Accessor to the names of the stochastic input variables.

Returns

namesopenturns.Description

Names of the stochastic input variables

getVisibility()

Accessor to the object’s visibility state.

Returns

visiblebool

Visibility flag.

hasInputNamed(inputName)

Check if an input has the given name.

Parameters

namestr

Variable name

Returns

hasbool

Whether an input has the given name

hasMesh()

Whether the model has a mesh.

Returns

hasMeshbool

Whether the model has a mesh

hasName()

Test if the object is named.

Returns

hasNamebool

True if the name is not empty.

hasOutputNamed(outputName)

Check if an output has the given name.

Parameters

namestr

Variable name

Returns

hasbool

Whether an output has the given name

hasStochasticInputs()

Whether it contains stochastic variables.

Returns

hasbool

Whether it contains stochastic variables

hasVisibleName()

Test if the object has a distinguishable name.

Returns

hasVisibleNamebool

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

isParallel()

Whether the evaluations of the model are parallelized.

Returns

isParallelbool

Whether the evaluations of the model are parallelized (available only for the Python model)

isValid()

Whether it is valid.

Returns

isValidbool

Whether it is valid

removeInput(inputName)

Remove an input variable.

Parameters

namestr

Variable name

removeOutput(outputName)

Remove an output variable.

Parameters

namestr

Variable name

selectOutput(outputName, selected)

Select output.

Parameters

namestr

Output name

isSelectedbool

Whether it is selected

setCode(code)

Code accessor.

Parameters

codestr

Code text

setCopula(inputNames, copula)

Copula accessor.

Parameters

copulaopenturns.Copula

The copula

setDistribution(inputName, distribution)

Input distribution accessor.

Parameters

namestr

Variable name

distributionopenturns.Distribution

Variable distribution

setDistributionParametersType(inputName, distributionParametersType)

Input distribution parameter type accessor.

Parameters

namestr

Variable name

parametersTypeint

Distribution parameter type accessor

setFiniteDifferenceStep(inputName, step)

Finite difference step accessor.

Parameters

namestr

Variable name

stepfloat

Finite difference step used to define the gradient of the model’s function

setInputDescription(inputName, description)

Input description accessor.

Parameters

namestr

Variable name

descriptionstr

Description text

setInputName(inputName, newName)

Input variable name accessor.

Parameters

namestr

Variable name

newNamestr

New name

setInputStochastic(inputName, stoch)

Whether the input variable is stochastic.

Parameters

namestr

Variable name

isStochasticbool

Whether the input variable is stochastic

setInputValue(inputName, value)

Input variable value accessor.

Parameters

namestr

Variable name

valuefloat

New value

setInputs(inputs)

Input variables accessor.

Parameters

inputssequence of Input

Input variables

setMeshModel(meshModel)

Mesh model accessor.

Parameters

meshMeshModel

Mesh model

setName(name)

Accessor to the object’s name.

Parameters

namestr

The name of the object.

setOutputDescription(outputName, description)

Output description accessor.

Parameters

namestr

Variable name

descriptionstr

Description text

setOutputName(outputName, newName)

Output variable name accessor.

Parameters

namestr

Variable name

newNamestr

New name

setOutputValue(outputName, value)

Output variable name accessor.

Parameters

namestr

Variable name

valuefloat

New value

setOutputs(outputs)

Output variables accessor.

Parameters

outputssequence of Output

Output variables

setParallel(flag)

Whether the evaluations of the model are parallelized.

Parameters

isParallelbool

Whether the evaluations of the model are parallelized (available only for the Python model)

setProcessNumber(processNumber)

Number of concurrent processes.

Parameters

process_numberint

Maximum number of processes

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.

property thisown

The membership flag