Transformer

InvertAugmenter

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

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