> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fincept.in/llms.txt
> Use this file to discover all available pages before exploring further.

# Vine regression

> Conditional mean and quantiles of one asset given others from a vine copula with kernel margins: nonlinear, tail-aware regression such as a stock's 5% quantile given the market (CoVaR-style).

Toolset `copula_regression`: 1 tool.

| Tool | What it does | Notes |
| - | - | - |
| `copula_vine_regression` | Vine copula regression: fits kernel margins and a vine copula over the target and feature assets, then predicts the target's conditional mean and conditional quantiles at given feature values, capturing nonlinear and tail-dependent relations (e.g. a stock's 5% quantile when the market falls 3%, CoVaR-style). | |

Inputs, limits and outputs are described in [Fincept Copula](/guides/fincept-copula). Full schemas: `fincept_describe_tool`.


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