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gram_matrix

scirs2_transform::kernel::kernels

Function gram_matrix

pub fn gram_matrix<S>(
    x: &ArrayBase<S, Ix2>,
    kernel: &KernelType,
) -> Result<Array2<f64>>where
    S: Data,
    S::Elem: Float + NumCast,

Expand description

Compute the Gram matrix (kernel matrix) for a dataset

The Gram matrix K has entries K[i,j] = k(x_i, x_j).

§Arguments

x - Input data matrix, shape (n_samples, n_features)
kernel - The kernel function type

§Returns

Result<Array2<f64>> - The Gram matrix, shape (n_samples, n_samples)