LeaveOneOutSplitter

class LeaveOneOutSplitter(*args)

Leave-one-out splitter.

Generates train/test indices to split samples in train/test sets. Each sample is used once as a test set while the remaining samples form the training set.

Parameters:

Nint

Size of the set of indices in which the indices are chosen

Examples

>>> import openturns as ot
>>> X = ot.Normal().getSample(10)
>>> splitter = ot.LeaveOneOutSplitter(X.getSize())
>>> for indices1, indices2 in splitter:
...     X_train, X_test = X[indices1], X[indices2]

Methods

getClassName()	Accessor to the object's name.
getId()	Accessor to the object's id.
getN()	Set size accessor.
getName()	Accessor to the object's name.
getShadowedId()	Accessor to the object's shadowed id.
getSize()	Number of sets generated.
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)

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.

getN()

Set size accessor.

Returns:

Nint

Size of the set of indices in which the indices are chosen

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.

getSize()

Number of sets generated.

Returns:

lengthint

Number of sets of indices generated.

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.

Examples using the class

Polynomial chaos expansion cross-validation

Polynomial chaos expansion cross-validation