Function plot_correlation_matrix 

pub fn plot_correlation_matrix<T>(
    datasets: &[(&str, ArrayView1<'_, T>)],
    config: &PlotConfig,
) -> NdimageResult<String>
where
    T: Float + FromPrimitive + ToPrimitive + Debug + Clone,

Generate correlation matrix visualization for multiple datasets

Creates a text-based correlation matrix showing relationships between datasets. Useful for understanding data dependencies and relationships.

Arguments

• datasets - Slice of tuples containing dataset names and their 1D data arrays
• config - Plot configuration specifying format and styling

Returns

A formatted correlation matrix in the specified format