> For the complete documentation index, see [llms.txt](https://docs.sov.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sov.ai/api-reference/extensions.md).

# Extensions

DataFrame extensions for analytics, feature engineering, and signal evaluation.

## Modules

* [Anomalies](/api-reference/extensions/anomalies.md) — API reference for sovai.extensions.anomalies
* [Ask Df Llm](/api-reference/extensions/ask-df-llm.md) — API reference for sovai.extensions.ask\_df\_llm
* [Change Point Generator](/api-reference/extensions/change-point-generator.md) — API reference for sovai.extensions.change\_point\_generator
* [Chart Explainer](/api-reference/extensions/chart-explainer.md) — Chart Explanation Module using Gemini via Ephemeral Token Broker
* [Clustering](/api-reference/extensions/clustering.md) — API reference for sovai.extensions.clustering
* [Core Kshape](/api-reference/extensions/core-kshape.md) — API reference for sovai.extensions.core\_kshape
* [Cusum](/api-reference/extensions/cusum.md) — API reference for sovai.extensions.cusum
* [Dimensionality Reduction](/api-reference/extensions/dimensionality-reduction.md) — API reference for sovai.extensions.dimensionality\_reduction
* [Feature Extraction](/api-reference/extensions/feature-extraction.md) — API reference for sovai.extensions.feature\_extraction
* [Feature Importance](/api-reference/extensions/feature-importance.md) — API reference for sovai.extensions.feature\_importance
* [Feature Neutralizer](/api-reference/extensions/feature-neutralizer.md) — API reference for sovai.extensions.feature\_neutralizer
* [Filter Df](/api-reference/extensions/filter-df.md) — API reference for sovai.extensions.filter\_df
* [Fractional Differencing](/api-reference/extensions/fractional-differencing.md) — API reference for sovai.extensions.fractional\_differencing
* [Nowcasting](/api-reference/extensions/nowcasting.md) — API reference for sovai.extensions.nowcasting
* [Overall Explainers](/api-reference/extensions/overall-explainers.md) — Overall Explainers Module
* [Pairwise](/api-reference/extensions/pairwise.md) — API reference for sovai.extensions.pairwise
* [Pandas Extensions](/api-reference/extensions/pandas-extensions.md) — API reference for sovai.extensions.pandas\_extensions
* [Parallel Functions](/api-reference/extensions/parallel-functions.md) — API reference for sovai.extensions.parallel\_functions
* [Pfa Feature Selector](/api-reference/extensions/pfa-feature-selector.md) — API reference for sovai.extensions.pfa\_feature\_selector
* [Regime Change](/api-reference/extensions/regime-change.md) — API reference for sovai.extensions.regime\_change
* [Regime Change Pca](/api-reference/extensions/regime-change-pca.md) — API reference for sovai.extensions.regime\_change\_pca
* [Shapley Global Importance](/api-reference/extensions/shapley-global-importance.md) — API reference for sovai.extensions.shapley\_global\_importance
* [Shapley Importance](/api-reference/extensions/shapley-importance.md) — API reference for sovai.extensions.shapley\_importance
* [Signal Evaluation](/api-reference/extensions/signal-evaluation.md) — API reference for sovai.extensions.signal\_evaluation
* [Table Explainer](/api-reference/extensions/table-explainer.md) — Table Explanation Module using Gemini via Ephemeral Token Broker
* [Technical Indicators](/api-reference/extensions/technical-indicators.md) — API reference for sovai.extensions.technical\_indicators
* [Time Decomposition](/api-reference/extensions/time-decomposition.md) — API reference for sovai.extensions.time\_decomposition