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InvertAugmenter

API referenceSource
MultivariateUnequal-length series

Augmenter inverting the time series by multiplying it by -1.

If transform is given a time series \(X={x_1, x_2,..., x_n}\), then returns \(X_t={-x_1, -x_2,..., -x_n}\).

Quickstart

python
from sktime.transformations.augmenter import InvertAugmenter

estimator = InvertAugmenter

Tags

Capabilities

  • Multivariate
  • Unequal-length series
  • Inverse transform: Not supported
  • Missing values: Not supported
  • Removes missing values: Not supported
  • Equalizes series length: Not supported

Properties

Input typescitype:transform-input
Series
Output typescitype:transform-output
Series
Label typescitype:transform-labels
None
Fit is emptyfit_is_empty
Yes
Keeps the time indextransform-returns-same-time-index
No
Requires Xrequires_X
Yes
Requires yrequires_y
No
X and y need the same indexX-y-must-have-same-index
No

Examples

>>> from sktime.transformations.augmenter import InvertAugmenter
>>> import pandas as pd
>>> X = pd. Series ([1, 2, 3, 4, 5 ])
>>> augmenter = InvertAugmenter ()
>>> Xt = augmenter. fit_transform (X)
>>> Xt 0 -1 1 -2 2 -3 3 -4 4 -5 dtype: int64