# XWUIChartCorrelationMatrix

A correlation matrix chart (the grid of pairwise correlations between variables, each cell encoding the coefficient): a fixed-type wrapper around `XWUIChart` that lays variables along both axes and renders one cell per pair so the full set of relationships sits in a single square. Pass `series` of rows, each carrying `{ x, y }` cells, plus a `block` preset (1-4) and `size` (`sm` / `md` / `lg`); the shared block config also exposes legend, grid, axis, data-label, and tooltip-formatter toggles. Use it to compare every variable against every other in one structured view.

## Basic Usage

A 5x7 grid of values fed to the correlation-matrix renderer at the md size preset.

```example
file: examples/BasicUsage.ts
html: examples/BasicUsage.html
title: Basic Usage
description: Five rows of seven cells each, laid out as a matrix with one cell per variable pair.
```

## Exam Subject Correlation Matrix

Correlations between student scores across six subjects, revealing a STEM block and a humanities block.

```example
file: examples/ExamSubjects.ts
html: examples/ExamSubjects.html
title: Exam Subject Correlation Matrix
description: A six-by-six matrix of subject-score correlations, with the STEM and humanities clusters forming two diagonal blocks.
```

## Model Feature Correlation Matrix

Pairwise correlation among house-price predictors, used to spot collinear features before fitting.

```example
file: examples/FeatureCorrelation.ts
html: examples/FeatureCorrelation.html
title: Model Feature Correlation Matrix
description: A predictor correlation matrix for a house-price model, surfacing collinearity between size-related features.
```

```api
```