pykelihood.kernels.

exponential_ratio

exponential_ratio(X, a, b, c)

Exponential ratio kernel function.

\[y = c \cdot \exp\left(\frac{a \cdot X}{b}\right)\]

Parameters:

• X (array-like) – Input data.

• a (float) – Numerator coefficient inside the exponential.

• b (float) – Denominator coefficient inside the exponential.

• c (float) – Scaling factor.

Returns:

Exponential ratio kernel output.

Return type:

array-like